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Umidigi A3 Pro - TWRP & Stock Rom

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By Cleopatra Bianchi, Senior Member on 17th December 2018, 03:19 PM
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Reserved exclusively for the stock rom V1.0_20181122

Download the stock rom V1.0_20181122 at the following link :

https://mega.nz/#!yxkUVA4I!0exovcsKT...v_Bp3Nl5mGQ7o8

Download the TWRP at the following link :

https://mega.nz/#!G510QIbL!sbPzFXUi1...Qxg9mrUNjAeWrA

Download "Disable_Dm-Verity_ForceEncrypt_12.16.2018.zip" at the following link :

https://mega.nz/#!a092gK4A!SYjKF4EUu...Ure4bFhxVuCjX0

Download "Bu_&_Ma.rar" (Busybox & Magisk) at the following link :

https://mega.nz/#!C9lUjCqT!fBoh8p1Jg...Hq67_IKb1IUyyw

Please follow very carefully all the next steps :

1) Copy "Disable_Dm-Verity_ForceEncrypt_12.16.2018.zip" onto your microSD.
2) Unrar "Bu_&_Ma.rar" and copy Busybox zip & Magisk zip onto your microSD.
3) Flash the stock rom V1.0_20181122 through SP Flash Tool.

I strongly recommend the "Firmware Upgrade" option (on SP Flash Tool).

4) Tap on Settings --> System --> About phone
5) Tap seven times on Build number
6) Then, tap on Developer options.
7) Enable OEM unlocking & USB debugging.
8) Unrar the TWRP rar.
9) Run SP Flash Tool.
10) Load the scatter file inside the twrp folder.
11) Select Download Only option.
12) Click Download.
13) Connect your turned off phone to the pc with USB cable.
14) When at 100% please disconnect the USB cable.
15) Enter onto twrp recovery (volume up + power buttons simultaneously).

FUNDAMENTAL STEP

16) Select the first white line with volume up.
17) Press volume down to confirm.
18) Select language
19) "enter password" tap on cancel
20) Tap on WIPE
21) Tap on FORMAT DATA (type yes).

Consideration :

FORMAT DATA will wipe your internal storage.
I suggest you to make a backup before to format Data.

22) Return to the twrp home screen.

VITAL STEP

23) Tap on Reboot and choose Recovery.
DO NOT reboot your device onto System !
Tap on Do Not Install.
24) Tap Install, Select Storage, Micro SDCard, OK.
25) Tap on "Disable_Dm-Verity_ForceEncrypt_12.16.2018.zip".
26) Swipe to confirm Flash.

Consideration about "Disable_Dm-Verity_ForceEncrypt_12.16.2018.zip" :

Many thanks to @Zackptg5 for this zip.
This zip disable Dm-Verity, Forced Encryption, and Disc Quota Disabler.
Like Zackptg5 says :
"This zip should be flashed after anything that modifies your boot img (like a custom kernel) but before magisk/supersu since this zip creates the files that tells magisk/supersu to not encrypt".

27) Tap on Magisk.zip
28) Tap on Busybox.zip
29) Swipe to confirm Flash.
30) Tap on Reboot (into System) and tap on Do Not Install.
31) Be patient.
32) Set up as new.
33) Tap on Settings --> System --> About phone
34) Tap seven times on Build number
35) Then, tap on Developer options.
36) Enable OEM unlocking & USB debugging.

EXTREMELY VITAL :

37) Tap on Magisk Manager.
38) Upgrade to full Magisk Manager.

NOW you can see NOT ROOTED phone :



39) Reboot the phone.

NOW you can see ROOTED phone :



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17th December 2018, 10:22 PM |#2  
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UPDATE
UPDATE - NEW STOCK ROM & NEW TWRP



TWRP reserved exclusively for the stock rom V1.1_20181211

Download the NEW stock rom V1.1_20181211 at the following link :

https://mega.nz/#!G9kwVSrT!yiS38SKmP...pctmUBr3fIBPNo

Download the NEW TWRP at the following link :

https://mega.nz/#!uwkkQYCb!Sb5ObKgue...TUiK6QbrCm3cN8


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23rd December 2018, 12:45 AM |#3  
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Update - 01
UPDATE - NEW TWRP 3.2.3-0



There are two TWRPs :

The first TWRP is reserved exclusively for the stock rom V1.0_20181122




The second TWRP is reserved exclusively for the stock rom V1.1_20181211




Please follow very carefully all the steps at the first post.


Both TWRPs are available on Needrom

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26th December 2018, 02:22 AM |#4  
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UPDATE
UPDATE - NEW STOCK ROM & NEW TWRP




GUIDELINES FOR THE INSTALLATION OF THE OTA ZIP

Please follow carefully all the next steps in order to install properly the OTA zip :

1) Flash the stock rom V1.1_20181211 (Firmware Upgrade option on SP Flash Tool).
2) Set up as new.
3) Download the OTA zip (V1.2_20181221_update .rar) at the next link :

https://mega.nz/#!bpsxxCCb!k-G1ndw1i...JAxoxHMTSqZk-s

4) Unrar the V1.2_20181221_update.rar
5) DO NOT unzip the update.zip
6) Copy the entire folder "V1.2_20181221_update" onto your microSD.
7) Turn off your phone.
8) Hit simultaneously volume up + power buttons.
9) Hit the volume up button to select Recovery mode.
10) Dead Android and red triangle error - NO PANIC
11) Hit simultaneously volume up + power buttons several times.
12) Hit the volume up or volume down buttons to move between the options.
13) Hit the power button to select any option.
14) Select Apply update from SD card.
15) Select the folder "V1.2_20181221_update" onto your microSD.
16) Select the update.zip
17) Hit power button to start the installation process.



18) Select Wipe data/factory reset --> Select Yes.
19) Select Wipe cache partition --> Select Yes.
20) Select Reboot system now.
21) Set up as new.



22) Tap on Settings --> System --> About phone
23) Tap seven times on Build number
24) Then, tap on Developer options.
25) Enable OEM unlocking & USB debugging.

TWRP :



A3_P-NEW-twrp_03.rar (ROOT STEPS AT FIRST POST)

The twrp is available on Needrom

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2nd January 2019, 04:12 PM |#5  
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I use umidigi A3. Will it work for me
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2nd January 2019, 04:28 PM |#6  
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answer
Quote:
Originally Posted by Toluene15

I use umidigi A3. Will it work for me

Absolutely not.
This thread is reserved exclusively to the Umidigi A3 Pro
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2nd January 2019, 04:33 PM |#7  
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Can you help A3 users?
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2nd January 2019, 04:50 PM |#8  
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A3 Pro V1.2 LIGHT
Umidigi A3 Pro V1.2 LIGHT version

It is a debloated version of the original stock rom V1.2_20181221.

Added TWRP 3.2.3 and Simple Gallery.apk

In the original stock V1.2_20181221 the free space onto System is 155 MB
Instead, in the A3 Pro V1.2 LIGHT the free space onto System is 625 MB



Download the A3_Pro_V1.2-LITE.rar at the following link :

https://mega.nz/#!jsVTUCCQ!qg4WabDN5...mSKoVQ6dszEMUA

Please follow very carefully all the next steps :

1) Flash the A3 Pro V1.2 LIGHT through SP Flash Tool.

I strongly recommend the "Firmware Upgrade" option (on SP Flash Tool).

2) Turn on your phone.
3) When the setup wizard will appear, turn off your phone.
4) Enter onto twrp recovery (volume up + power buttons simultaneously).
5) Select the first white line with volume up.
6) Press volume down to confirm.
7) Select language
8) "enter password" tap on cancel
9) Tap on WIPE
10) Tap on FORMAT DATA (type yes)
11) Return to the twrp main screen.
12) Tap on Reboot and choose System.
13) Complete all the requirements of the setup wizard.
14) Tap on Settings --> System --> About phone
15) Tap seven times on Build number
16) Then, tap on Developer options.
17) Enable OEM unlocking & USB debugging.
18) Tap on Magisk icon.
19) Upgrade to full Magisk Manager.
20) VITAL : Reboot the phone (it is needed for the fully functioning of Magisk).
21) Tap on the Play Store to update the apk.

In the Play Store, the first time that you update (apk), it takes a little time.



DO NOT update the A3 Pro V1.2 LIGHT to a newer version (no OTA)
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3rd January 2019, 08:40 AM |#9  
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Quote:
Originally Posted by Toluene15

Can you help A3 users?

If somebody will take Lineage OS 16, it must be suitable for A3Pro and A3
4th January 2019, 10:06 PM |#10  
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Android pie custom rom
Great work in bringing twrp to our devices. It will be so much nicer if lineage 16 os or any other treble gsi custom rom running android 9 would work without ussd or sms issues on mtk devices like the a3 and a3 pro
5th January 2019, 12:50 PM |#11  
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answer
Quote:
Originally Posted by shifi_11

Great work in bringing twrp to our devices. It will be so much nicer if lineage 16 os or any other treble gsi custom rom running android 9 would work without ussd or sms issues on mtk devices like the a3 and a3 pro

Also my A3 Pro V1.2 LIGHT version looks pretty sweet.

Regarding the Project Treble, I am already working on it.
But I cannot confirm anything at this point.
Please be patient (and fingers crossed).
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