[GUIDE] Firmwares, ROMs, CWM, Root - Acer Iconia (MTK) Tablets

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E

edoilers94

New member
Apr 13, 2015
3
0
Acer stock firmware

Can someone help me find the stock firmware for my acer tab10 a3-a20. build is Acer_av0k0_a3-a20_1.022.00_ww_gen1.zip

I've looked everywhere and no luck

Thanks
 
V

vel_tins

Senior Member
Jun 23, 2007
316
75
Bangkok
Stock firmware for the A3-A40?

Ok, so no root, or custom recovery for the A3-A40 until today.
But is there at least a stock firmware to download somewhere?
I would like to try to port TWRP to this Firmware, but need at least a boot.img or recovery.img.
Since this device supports bootloader unlocking, the risk to brick the device, is relatively low.
 
S

SMaxtor

Member
Apr 13, 2011
12
4
Why didn' you checked the acer homepage?
https://global-download.acer.com/GDFiles/OS/OS/OS_Acer_AV0M0.RV03RC04.WW.GEN1_A60M_A.zip?acerid=636068469259919265&Step1=TABLET&Step2=ICONIA%20TAB%2010&Step3=A3-A40&OS=ALL&LC=de&BC=ACER&SC=EMEA_8"
 
V

vel_tins

Senior Member
Jun 23, 2007
316
75
Bangkok
SMaxtor said:
Why didn' you checked the acer homepage?
https://global-download.acer.com/GDFiles/OS/OS/OS_Acer_AV0M0.RV03RC04.WW.GEN1_A60M_A.zip?acerid=636068469259919265&Step1=TABLET&Step2=ICONIA%20TAB%2010&Step3=A3-A40&OS=ALL&LC=de&BC=ACER&SC=EMEA_8"
Click to expand...
Click to collapse

"Why didn' you checked the link" before posting - 404 not found.
However, this is just an OTA update.zip, NOT a full FIRMWARE!
No "recovery.img", etc.pp.
 
10256929

10256929

New member
Jul 3, 2012
2
0
42
behbahan
my acer a1 713hd is bricked

hi to all yesterday i got a1713 hd in boot loop try to flash but i got error so i use frimware upgrad button but no luck after that pc not detect my tab no sound no vcom or mtk port in device manager w or wo battery any one can help me what should i do ?
thx
 
I

imprestness

New member
May 27, 2017
4
0
hi all , i have acer a3 a20, freez on logo Acer. I download firmware for flashtool, but i have error S_Brom_Download_sa_fail(0x7d4)
How do I fix this error? May be need driver ?
 
V

vel_tins

Senior Member
Jun 23, 2007
316
75
Bangkok
imprestness said:
hi all , i have acer a3 a20, freez on logo Acer. I download firmware for flashtool, but i have error S_Brom_Download_sa_fail(0x7d4)
How do I fix this error? May be need driver ?
Click to expand...
Click to collapse

No driver problem.
I have the same problem with an Acer A3-A40.
SP Flash Tool (latest) on this PC works with other MTK phones, but not with this particular Acer junk.
I guess, Acer has modified preloader/bootloader to break SPFT compatibility.
Sucks...really.
 
E

egzakutacno

New member
May 29, 2017
1
0
Forbidden

i cant access dl link.... HELP?

You don't have permission to access /dls/storage/B3-A20/OS_Images/Canada-Latin_America-USA_(WW_GEN1)/Acer_AV0L0_B3-A20_RV03RC02_WW_GEN1/SDs_Acer_AV0L0_B3-A20_RV03RC02_WW_GEN1-update_wipe.zip on this server.
Apache/2.4.18 (Ubuntu) Server at acer.shreps.fr Port 80
 
DexRox

DexRox

Member
Jan 19, 2015
48
25
Salerno
I have an A1-810 unlocked. Is there a rom that can flash via fastboot or sideload?

Inviato dal mio Nexus 5 utilizzando Tapatalk
 
Last edited:
P

Premierepm

New member
May 14, 2017
2
0
Changing Android OS on a Acer Iconia A5008 A3-B20

I am new to XDA and need some guidance. I purchased 5 of the Acer Tablets that had varying issues, cracked screens, broken LCD's. I have repaired 2. My problem is both of them have the Android 5.1 OS which ties the users Google acct. to the tablet. I've come to the conclusion the only way to by-pass. this is to replace the OS. This is where I need assistance. I've tried to search online for how to do this, and there are so many different answers, with some info left out, or use terminology I don't understand. What I'm looking for is someone who could give me the step by step process to achieve this. I am new to doing this but not dumb, just not up to speed. Any help would be truly appreciated. If I am in to wrong lane to be asking this question, I apologize, and ask for directions to the correct forum.
The
Jb
 
M

mzj4213

Senior Member
Jul 10, 2015
390
96
Ipoh
Premierepm said:
I am new to XDA and need some guidance. I purchased 5 of the Acer Tablets that had varying issues, cracked screens, broken LCD's. I have repaired 2. My problem is both of them have the Android 5.1 OS which ties the users Google acct. to the tablet. I've come to the conclusion the only way to by-pass. this is to replace the OS. This is where I need assistance. I've tried to search online for how to do this, and there are so many different answers, with some info left out, or use terminology I don't understand. What I'm looking for is someone who could give me the step by step process to achieve this. I am new to doing this but not dumb, just not up to speed. Any help would be truly appreciated. If I am in to wrong lane to be asking this question, I apologize, and ask for directions to the correct forum.
The
Jb
Click to expand...
Click to collapse

You could just factory reset from recovery mode
 
S

sax1966

Member
Nov 9, 2016
7
1
Hello I downloaded the needed to make the flash on my tablet icon B1-711.When I try to flash I get the error brom error: s_ft_download_fail (4008). I tried to change com, change the cable but nothing ever gets me the same Error. I followed your guide and I removed the flag on preloader and used as download agent the DA_A3B1.bin file. You can help me please. Thanks
 
V

vel_tins

Senior Member
Jun 23, 2007
316
75
Bangkok
Was anybody successful, to read the firmware from the A3-A40?
Or, at least connect the SPFT with this device?

SPFT connects, but immediately disconnects with:
Code: 
[B]S_BROM_DOWNLOAD_DA_FAIL (2004)[/B]

All other MTK's work fine with SPFT, only the crappy Iconia doesn't...
 
tomicdusan

tomicdusan

Member
Jan 15, 2010
15
0
Hi guys,

I have search but I cannot find any newer rom for B1-A71, i have WW_GEN1 4.1.2 RV05RC05 1.258.00 at the moment, any newer OS available?

Regards,
Dusan
 
M

mzj4213

Senior Member
Jul 10, 2015
390
96
Ipoh
sax1966 said:
Hello I downloaded the needed to make the flash on my tablet icon B1-711.When I try to flash I get the error brom error: s_ft_download_fail (4008). I tried to change com, change the cable but nothing ever gets me the same Error. I followed your guide and I removed the flag on preloader and used as download agent the DA_A3B1.bin file. You can help me please. Thanks
Click to expand...
Click to collapse

vel_tins said:
Was anybody successful, to read the firmware from the A3-A40?
Or, at least connect the SPFT with this device?

SPFT connects, but immediately disconnects with:


All other MTK's work fine with SPFT, only the crappy Iconia doesn't...
Click to expand...
Click to collapse

Download the recovery flashable zip and use adb sideload. This worked for me on A1-713.

tomicdusan said:
Hi guys,

I have search but I cannot find any newer rom for B1-A71, i have WW_GEN1 4.1.2 RV05RC05 1.258.00 at the moment, any newer OS available?

Regards,
Dusan
Click to expand...
Click to collapse

Did you check the official support site for firmwares? If there is no newer version, there is no newer OS. ( Or maybe use the xda search :p )
 
Last edited:
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  • 36
    Shreps
    Shreps
    Acer Iconia (MTK) Tablets
    Development



    Main Contributors & Dev
    @FireDiamond @vache @Shreps

    This thread is only for Acer Iconia Tablets with MTK (MediaTek CPU/SoC)
    If you have an Acer Iconia Tab with Intel CPU/SoC (like Iconia One 8), please look at this thread : [GUIDE] Root Acer Iconia Tab 8 - One 8
    If you have an Acer Liquid Smartphone with MTK SoC, please look at this one : [GUIDE] Firmwares, ROMs, CWM, Root - Acer Liquid MTK Smartphones

    Devices supported

    Code: 
              | Reco Firmware | SPFT Firmware | Preloader Unlocked | Custom Recovery | Root 
A1-713    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
A1-713HD  |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
A1-810    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | Partial
A1-811    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | Partial
A1-841    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
A3-A20    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
A3-A20FHD |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
A3-A10    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | [COLOR="MediumTurquoise"]YES[/COLOR]
A3-A11    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
B1-A71    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | [COLOR="MediumTurquoise"]YES[/COLOR]
B1-710    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | [COLOR="MediumTurquoise"]YES[/COLOR]
B1-711    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="MediumTurquoise"]YES[/COLOR]         |       [COLOR="MediumTurquoise"]YES[/COLOR]       | [COLOR="MediumTurquoise"]YES[/COLOR]
B1-720    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?
B1-721    |      [COLOR="MediumTurquoise"]YES[/COLOR]      |      [COLOR="MediumTurquoise"]YES[/COLOR]      |        [COLOR="Red"]NO[/COLOR]          |       [COLOR="Red"]NO[/COLOR]        | ?

    ________________

    Guides & Links

    Unlock Bootloader/Preloader + Flash CWM Guide by @FireDiamond
    Firmwares for flashing with SP Flash Tool - Generic Guide [EN][RU]
    Firmwares for flashing with SPFT GUIDE for A1-81x Tabs - [EN] thx @nikagl

    Unlock bootloader + CWM - [EN]
    Unlock bootloader + CWM for A3-A10 4.4 - [FR]
    Unlock bootloader + CWM for A1-810 4.4 - [RU] [EN] [DE]
    Unlock bootloader + CWM for A1-811 - thx @nikagl [EN]
    Fix wrong colors on B1-A71

    XDA - Acer Iconia Toolkit Thread - English
    4PDA - Acer A1-810/A1-810 Discussion - Russian
    4PDA - Acer B1-A71 Firmware/Developing - Russian
    4PDA - Acer B1-711 Firmware/Developing - Russian
    Acer Club - Acer Android-powered tablets - French
    Android-hilfe - Acer A1 Forum - German

    OLD Guide :
    Firmwares for flashing with SPFT GUIDE for 2013's Tabs - [EN]
    (A1-810, A1-811, A3-A10, A3-A11, B1-A71, B1-710, B1-711, B1-720, B1-721)
    Firmwares for flashing with SPFT GUIDE for 2014's Tabs - [EN]
    (A1-713, A1-713HD, A3-A20, A3-A20FHD)

    ________________

    Files & Download

    All Files mirrored by @vache : http://cloud.vache-android.com/Acer/
    All Files mirrored by @Moriveon : https://mega.nz/#F!34QQ1Y6C!cE0Q-VsDuvNTDwE238lRYA

    Firmwares for stock recovery


    @nikagl Mirrors :

    Code: 
    A1-713    [KK]   [URL="http://cutt.us/C5d9u"]SD_Acer_AV0K0_A1-713_RV02RC05_WW_GEN1.zip[/URL]
A1-713HD  [KK]   [URL="http://cutt.us/NgVXg"]SDs_Acer_AV0K0_A1-713HD_RV05RC06_WW_GEN1.zip[/URL]

A1-810    [JB]   [URL="http://cutt.us/4wveq"]SDs_Acer_A1-810_AV052.RV00RC00_AV052.RV21RC02_WW_GEN1.rar[/URL]
A1-810    [JB]   [URL="http://cutt.us/7Cme"]SDs_Acer_AV052_A1-810_RV31RC03_WW_GEN1.zip[/URL]
A1-810    [KK]   [URL="http://cutt.us/r9RK4"]SDs_Acer_AV0K0_A1-810_RV0HRC03_WW_GEN1.zip[/URL]

A1-811    [JB]   [URL="http://cutt.us/7Cme"]SDs_Acer_AV052_A1-810_RV31RC03_WW_GEN1.zip[/URL]
A1-811    [JB]   [URL="http://cutt.us/UHI8"]SDs_Acer_A1-811_AV052.RV00RC00_AV052.RV02RC20_WW_GEN1.rar[/URL]
A1-811    [JB]   [URL="http://cutt.us/nIJQJ"]SDs_Acer_A1-811_AV052.RV00RC00_AV052.RV01RC11_WW_GEN1.rar[/URL]
A1-811    [KK]   [URL="http://cutt.us/uvyn"]SDs_Acer_A1-811_AV0K0.RV00RC00_AV0K0.RV02RC06_WW_GEN1.zip[/URL]

A1-841    [KK]   [URL="http://cutt.us/mkdB"]SDs_Acer_AV0K1_A1-841_RV0CRC08_WW_GEN1.zip[/URL]
A1-841    [KK]   [URL="http://cutt.us/ONfY"]SDs_Acer_AV0K1_A1-841_RV05RC06_WW_GEN1.zip[/URL]

A3-A10    [KK]   [URL="http://cutt.us/jCJy"]SDs_Acer_AV0K0_A3-A10_RV05RC03_WW_GEN1.zip[/URL]

A3-A11    [KK]   [URL="http://cutt.us/dlps"]SDs_Acer_AV0K0_A3-A11_RV04RC05_WW_GEN1.zip[/URL]
A3-A11    [KK]   [URL="http://cutt.us/0pvh"]SDs_Acer_AV0K0_A3-A11_RV04RC05_WW_GEN1.zip[/URL]

A3-A20    [KK]   [URL="http://cutt.us/utaqA"]SDs_Acer_AV0K0_A3-A20_1.018.00_WW_GEN1.zip[/URL]
A3-A20    [KK]   [URL="http://cutt.us/adb1d"]SDs_Acer_AV0K0_A3-A20_0.011.00_WW_GEN1.zip[/URL]
A3-A20    [KK]   [URL="http://cutt.us/to8M"]SD_Acer_AV0K0_A3-A20_1.015.00_WW_GEN1.zip[/URL]
A3-A20    [KK]   [URL="http://cutt.us/8QLeO"]SDs_Acer_AV0K0_A3-A20_1.017.00_WW_GEN1.zip[/URL]

A3-A20FHD [KK]   [URL="http://cutt.us/zEPc"]SDs_Acer_AV0K0_A3-A20FHD_1.019.00_WW_GEN1.zip[/URL]
A3-A20FHD [KK]   [URL="http://cutt.us/ATaku"]SDs_Acer_AV0K0_A3-A20FHD_1.023.00_WW_GEN1.zip[/URL]
A3-A20FHD [KK]   [URL="http://cutt.us/nTPPJ"]SDs_Acer_AV0K0_A3-A20FHD_1.020.00_WW_GEN1.zip[/URL]
A3-A20FHD [KK]   [URL="http://cutt.us/h3Bn"]SDs_Acer_AV0K0_A3-A20FHD_1.019.00_WW_GEN1.zip[/URL]

B1-710    [JB]   [URL="http://cutt.us/270Q"]SDs_Acer_AV051_B1-710_1.098.00_WW_GEN1.zip[/URL]

B1-711    [JB]   [URL="http://cutt.us/3hIC"]SDs_Acer_AV0K0_B1-711_RV02RC02_WW_GEN1.zip[/URL]
B1-711    [JB]   [URL="http://cutt.us/D8fk"]SDs_Acer_AV0K0_B1-711_RV02RC05_WW_GEN1.zip[/URL]
B1-711    [JB]   [URL="http://cutt.us/NfI0"]SDs_Acer_AV052_B1-711_1.140.00_WW_GEN1.zip[/URL]

B1-720    [KK]   [URL="http://cutt.us/6GlaB"]SDs_Acer_AV0K0_B1-720_RV0BRC05_WW_GEN1.zip[/URL]

B1-721    [KK]   [URL="http://cutt.us/YGT9"]SDs_Acer_AV0K0_B1-721_RV0ARC02_WW_GEN1.zip[/URL]
B1-721    [KK]   [URL="http://cutt.us/9AGHL"]SDs_Acer_AV0K0_B1-721_RV0ARC04_WW_GEN1.zip[/URL]

B1-A71    [JB]   [URL="http://cutt.us/meT3R"]SDs_Acer_AV051_B1-A71_1.174.00_WW_GEN1.zip[/URL]
B1-A71    [JB]   [URL="http://cutt.us/owmCF"]SDs_Acer_AV051_B1-A71_1.258.00_WW_GEN1.zip[/URL]



    Firmwares for SPFT

    Code: 
    /-------------------------------------------------------------------------\
| Tablet   | OS |         Link         |           MD5 Checksum           |
|----------|----|----------------------|----------------------------------|
| A1-713   | KK | http://cutt.us/rv5lo | 4216159d9a92bac44e7f740625fcad4d | AV0K0_A1-713_RV02RC05_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-713HD | KK | http://cutt.us/nCgXD | a3bc62c9c34c148d21bc977ed81672aa | AV0K0_A1-713HD_RV05RC03_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-810   | JB | http://is.gd/f810_42 | c8daacfac5b31938c968a204de388f1c | AV052_A1-810_RV31RC03_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-810   | KK | http://is.gd/f810_44 | 640b0a19247b449b4dd166e050ccc01b | AV0K0_A1-810_RV0HRC03_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-811   | JB | http://is.gd/f811_44 | 38d8d223a6404a4426e5d469cfa86650 | AV052_A1-811_RV08RC07_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-811   | KK | http://cutt.us/L3Xq  | 0a173aaed83bb0dd493ad4f80530e450 | AV0K0_A1-811_RV02RC06_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A1-841   | KK | http://cutt.us/9fQ35 | e0fe3657d5510db18c021f1e33199123 | AV0K1_A1-841_RV0CRC08_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A10   | JB | http://is.gd/fa10_42 | c663e76b16a930f10dff84510a79b740 | AV052_A3-A10_RV05RC01_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A10   | KK | http://cutt.us/gwSU  | a8927856a6d655adb2ea9d4807fc63be | AV0K0_A3-A10_RV05RC03_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A11   | JB | http://is.gd/fa11_42 | 0d828c175073896adef35015c03617c7 | AV052_A3-A11_RV01RC12_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A11   | KK | http://cutt.us/gJzLe | b1f610a1b07b3c0b120d103318508bca | AV0K0_A3-A11_RV04RC05_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A11   | KK | http://cutt.us/jjOp  | 59705bb7d9bb1d7530fee641aeaa5bbf | AV0K0_A3-A11_RV04RC07_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A20   | KK | http://cutt.us/mCakd | d4e034d871df6b9cddf60ea7332e8dc3 | AV0K0_A3-A20_1.018.00_WW_GEN1
|----------|----|----------------------|----------------------------------|
| A3-A20FHD| KK | http://cutt.us/e5Smh | 9b3c816da5e843a90c1c8a16af14d44b | AV0K0_A3-A20FHD_1.023.00_WW_GEN1
|----------|----|----------------------|----------------------------------|
| B1-710   | JB | http://is.gd/f710_41 | 1cdb94d3d9565d356662cd7ecbcc2b42 |
|----------|----|----------------------|----------------------------------|
| B1-711   | JB | http://is.gd/f711_42 | 1c2d6bdb4e37b1bf80334aca0008f619 |
|----------|----|----------------------|----------------------------------|
| B1-720   | KK | http://is.gd/f720_44 | 756332f6b8bda55629786f817e281210 |
|----------|----|----------------------|----------------------------------|
| B1-721   | KK | http://is.gd/f721_44 | 85ac1c6919361f07851f73b52ebf5552 |
|----------|----|----------------------|----------------------------------|
| B1-A71   | JB | http://is.gd/fa71_41 | 956c208efe2000f92edbe77648ef15f6 |
\-------------------------------------------------------------------------/


    Bloatware Removers for custom recovery
    A1-810 BW Remover by GreatAR@4PDA and Moriveon@4PDA
    Download from MEGA

    B1-A71 BW Remover by Moriveon@4PDA
    Download from MEGA


    Custom Recoveries
    [A1-810] CWM Recovery with external SD Card mount: img
    [A1-811] CWM Recovery with external SD Card mount: img
    [A1-811] CarlivTouch-recovery-3_A1-811_Shreps.img (499ad25d01d7f2fd65e97db6e51baf3c) - @carliv Touch Recovery 3.0 for A1-811
    [A3-A10] CWM Recoveries: img
    [B1-A71] PhilZ Touch Recovery: img


    ________________

    Credits & Thanks

    ​
    View
    17
    M
    Moriveon
    -

    del
    View
    10
    nikagl
    nikagl
    Flash recovery and SUPERSU for ROOT for A1-81x

    Hi all,

    Because flashing recovery on A1-810/A1-811 turned out to be a little different than others, I decided to rewrite the steps a little. I've done this procedure many times, so I'm quite sure it works this way. So far I have not been able to brick my device this way, so no real danger (unless you'd use files for different devices or type wrong parameters). In all cases - unbricking can always be done flashing a full ROM (instructions see first post).

    Here are the *magic* the steps:

    • Download and unpack drivers: http://bit.ly/1hujx8o
      • Run "install_driver.exe" AS ADMINISTRATOR and wait about 2 minutes. After this you will see a popup window (Driver for xxx installed), close it and reboot your PC.
      • Turn your tablet off and connect it to PC. You will see a popup message "New device detected". Wait until drivers will be installed OR until tab will disconnect from PC.
    • Download the archive for unlocking your A1-811: http://bit.ly/1JChdUt or A1-810: http://bit.ly/1M4AbXn
      Unpack the archive to your folder.
    • Launch "/SP Flash Tool/flash_tool.exe" AS ADMINISTRATOR.
    • Press "File"->"Open Scatter-loading file...", choose MT6589_Android_scatter_emmc.txt from the "4.2 + 4.4 Unlock" folder
    • Press "Window"->"Write Memory", new tab will appear, open it.
    • Click "Open Raw Data", choose "secuoff.img" from the "4.2 + 4.4 Unlock" folder.
    • Configure options:
      • Memory Setting = EMMC
      • Begin Address = 0x3D80000
      • Container Length = 0x006D20
    • Click "Write Memory" and connect your tab to PC.
      • Red progress bar will appear.
      • Gray-green progress will appear.
      • Green circle will appear and you will hear the "device disconnected" sound.
    • Disconnect tab, DO NOT turn it on!
    • After this return to the "Download" tab.
    • First select only PRELOADER (use preloader_unlocked.bin) and SEC_RO (use secuoff.img).
    • Press "Download" and connect your tab to PC. Flashing process will start about in 20 seconds.
    • You will see following progress bars:
      • Red progress bar.
      • Purple progress bar.
      • Yellow progress bar.
      • Green circle.
    • Disconnect tab, DO NOT turn it on!
    • Second select only RECOVERY (use CWM-6.0.5.0_A1-811-eagleowl.img, Carliv has mount issues). See attached screenshot. Click on the word RECOVERY to select the new recovery file
    • Press "Download" and connect your tab to PC. Flashing process will start about in 20 seconds.
    • You will see following progress bars:
      • Red progress bar.
      • Purple progress bar.
      • Yellow progress bar.
      • Green circle.
    • Disconnect your tab from PC. Do not boot Android, try to boot in recovery:
    • Press and Hold Volume- (lower volume, the one closest to the power button) and turn tablet on. Hold Vol-minus till the recovery has been loaded
    • In my case USB mount didn't work. So I used sideload to install SuperSU:
    • Reboot tab and check whether root was succesfull
    • I installed Xposed with the Xposed installer using the option "Recovery (flash zip automatically)". It rebooted and installed it without having to select it from sdcard...
    IF SOMETHING WENT WRONG:
    There's a folder called "Rescue" for some OS versions. In SPFT load a scatter from that folder and flash files using "Download" button. You will get a warning window "Not all images loaded...", press "Yes".
    TROUBLESHOOTING AND SPFT ERRORS:
    SPFT Error "??(2)": Reboot your PC and retry.
    SPFT Error #10*3: Reinstall driver, try another USB port.
    SPFT Error #1021 (#8045): Your tab is completely dead. Nothing can revive it.
    SPFT Error #2004: The most dangerous and common error. See "Fixing reconnecting" below.
    SPFT Error #3144: This error may be on B1 tablets. For fixing it you need to remove back cover.
    When red bar will reach 100%, wait about 1 second and disconnect the battery.
    But if it will not help, you need to use testpoint.
    SPFT Error #4001: Disconnect tab's battery and retry without it.
    SPFT Error #4010 (#4032): The problem is on PC side. Try to reinstall driver, use another
    USB port and cable. The most users who got this problem has solved
    it by using another PC. Try to Disable signature enforcement if you're on Windows 8 / 8.1
    SPFT Error #61**: You will get this error when you have unlocked your bootloader and trying to flash.
    Solution: in SPFT UNcheck all blocks except PRELOADER, flash it using "Download" button.
    Then flash ALL blocks EXCEPT PRELOADER using "Download" button.
    SPFT Error #8038: Flash using "Download" button.

    Fixing reconnecting:
    When you connect your tab to PC, it recognizes tab. But after few seconds tab starts to reconnect every 3-5 seconds. Only two solutions are available at the moment:
    1. Disconnect tab from PC, press Reset button (located in the small hole) THREE TIMES and try to flash again.
    2. Try to flash without battery. Stuck on "Searching..." in SPFT:
    See SPFT Error #4032.
    Stuck on Acer logo: Press "Reset" and turn tab on again.
    Regards,

    Nika.

    Flash recovery and SUPERSU for ROOT for A1-81x
    Flash Full ROM guide (for unbricking) for A1-81x
    View
    9
    M
    Moriveon
    del
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    8
    Shreps
    Shreps
    [GUIDE] Flash/Unbrick with a SPFT Firmware

    Flash a full Firmware with SPFT (back to original / unbrick)

    Devices compatible with this Guide :
    • A1-713
    • A1-713HD
    • A3-A20
    • A3-A20FHD

    Downloads

    SP Flash Tool

    Firmwares


    Drivers
    • Download MTK Drivers : MTK_SP_Drivers_v1.4.rar (last one unsigned) or MTK_Signed_Drivers.zip (older but signed for Windows 8)
    • Open your Windows device manager
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • A "MTxx Preloader" device should appears for a few seconds, install drivers for it
    • Unplug, replug the USB cable, your device should be well regconized (a COM device in USB Ports & Com)

    Flash the firmware
    • Download the Firmware archive and the SP Flash tool for your device
    • Unzip both SPFT and Firmware archives
    • Run flash_tool.exe has an administrator
    • The program can prompt that a scatter file is required, click on OK.
      spft_load.png
    • Click on "Scatter-loading" and choose the scatter MTxxx_Android_scatter_emmc.txt file from the Rework-Secro directory under the Firmware directory
    • You should have something like :
      spft_secro.png
    • Make sure only SEC_RO partition is checked, you're in "Download Only" mode and click on "Download": SPFT is now waiting for a device a COM port to Flash
    • /!\Remember never use the Format pattern to download versions.
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • The flashing process will start automatically : do not unplug your USB cable !
    • Wait for a Green Circle saying the flash process is finished
      spft_ok.png
    • /!\ Do NOT power on your device, it must be stay off
    • Now, Click on "Scatter-loading" and choose the scatter MTxxx_Android_scatter_emmc.txt file from the root Firmware directory
    • You should have something like :
      spft_upgrade_firmware.png
    • /!\ It's recommended to uncheck the "PRELOADER" partition, you can try to make the process with this checked only if it failed before while unchecked.
    • Make sure the download pattern is “Firmware Upgrade”, and the firmware secro-sign.img is used instead of secro-sign.img from the previous folder
    • Click on "Download" : SPFT is now waiting for a device a COM port to Flash
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • The flashing process will start automatically : do not unplug your USB cable !
    • A red bar for COM loading, a purple bar for Preloader Flashing, a yellow bar for Firmware flashing
    • Wait for a Green Circle saying the flash process is finished
      spft_ok.png
    • Close SPFT, unplug USB Cable, put back your battery, charge your device for 10min, try to boot it

    And your device is back ;)
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