[TF300TG] For all who had received a brick after updating on the last firmware

sifkaivar

Member
Oct 26, 2012
5
0
0
Is there any way to "clone" software from another tf300tg?
i have heard that nv flash works only on tf300
Or is there any way to install ubuntu to a bricked tablet?
i saw somewhere something about unbricking tablet on a linux based pc... but i have memory problems and i forgot it.. :S
can "thinking outside of the box" help and can we unbrick our tablets by installing totally different firmware onto it....
and later original android...
Help Us You Mighty Nerds...(no offence ofcourse)
 

pmtt

Member
May 5, 2013
6
1
0
I am missing some mmcblk* devices

Code:
brw-------    1 root     root        7,   0 May  5 14:44 loop0
brw-------    1 root     root        7,   1 May  5 14:44 loop1
brw-------    1 root     root        7,   2 May  5 14:44 loop2
brw-------    1 root     root        7,   3 May  5 14:44 loop3
brw-------    1 root     root        7,   4 May  5 14:44 loop4
brw-------    1 root     root        7,   5 May  5 14:44 loop5
brw-------    1 root     root        7,   6 May  5 14:44 loop6
brw-------    1 root     root        7,   7 May  5 14:44 loop7
drwxr-xr-x    3 root     root            60 May  5 14:44 platform

./platform:
drwxr-xr-x    3 root     root            60 May  5 14:55 sdhci-tegra.0

./platform/sdhci-tegra.0:
drwxr-xr-x    2 root     root            40 May  5 14:55 by-num

./platform/sdhci-tegra.0/by-num:
 

pmtt

Member
May 5, 2013
6
1
0
nope, there isn't a solution yet
I have fixed my TF300T after flashing the wrong version of TWRP 2.5.0.0 (my fault) and wiping in TWRP.

Many thanks to User rudl1220 from the flash-freaks forum for his "HowTo TF201 TF300T TF300TG TF700 UNBRICK
He described the solution i was looking for and saved me a lot of time and money.
Because the document is written in german language I describe the steps how to bring the tablet back to life.

This solution worked for me, because i was able to connect my device to windows and use adb to reboot into android.
When i tried this with the tablet connected to the keyboard dock i got no USB connection.

1. The tablet boots into TWRP
2. on my PC i rebooted the tablet with "adb reboot bootloader"
3. navigating to the android icon with "volume down" and boot into android with "volume up"
3. via "adb shell" i typed dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1;dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
4. adb reboot --> Android is booting
5. at this point backing up all data is a good idea.
6. Installing TWRP 2.4.4.0-4.2:
- reboot tablet into TWRP
- at the PC (or MAC :) ) type "fastboot flash recovery openrecovery-twrp-2.4.4.0-tf300t-4.2.blob (when you have Build JOP40D.WW_epad-10.6.1.8-20130225)
- wait until the progessbar reached 100% and reboot the tablet.
After booting into TWRP all data were wiped automatically.

The tablet is fully working.
 
Last edited:

matt95

Senior Member
Aug 8, 2010
5,963
2,372
0
Milan
I have fixed my TF300T after flashing the wrong version of TWRP 2.5.0.0 (my fault) and wiping in TWRP.

Many thanks to User rudl1220 from the flash-freaks forum for his "HowTo TF201 TF300T TF300TG TF700 UNBRICK
He described the solution i was looking for and saved me a lot of time and money.
Because the document is written in german language I describe the steps how to bring the tablet back to life.

This solution worked for me, because i was able to connect my device to windows and use adb to reboot into android.
When i tried this with the tablet connected to the keyboard dock i got no USB connection.

1. The tablet boots into TWRP
2. on my PC i rebooted the tablet with "adb reboot bootloader"
3. navigating to the android icon with "volume down" and boot into android with "volume up"
3. via "adb shell" i typed dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1;dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
4. adb reboot --> Android is booting
5. at this point backing up all data is a good idea.
6. Installing TWRP 2.4.4.0-4.2:
- reboot tablet into TWRP
- at the PC (or MAC :) ) type "fastboot flash recovery openrecovery-twrp-2.4.4.0-tf300t-4.2.blob (when you have Build JOP40D.WW_epad-10.6.1.8-20130225)
- wait until the progessbar reached 100% and reboot the tablet.
After booting into TWRP all data were wiped automatically.

The tablet is fully working.
i can't boot into android unfortunately...
 

pmtt

Member
May 5, 2013
6
1
0
i can't boot into android unfortunately...
I'm sorry that that it does not work for you.
Eventually someone knows how to mount the invisible internal SD card in TWRP or how to create the device with mknod etc.
I managed to mount an external SD card on my bricked tablet in TWRP after creating a Linux partition (Type 83) and formatting the card with mk2efs on my Linux PC.
This could be usefull to use some Linux binaries like device drivers or modules on the tablet.
 
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matt95

Senior Member
Aug 8, 2010
5,963
2,372
0
Milan
I'm sorry that that it does not work for you.
Eventually someone knows how to mount the invisible internal SD card in TWRP or how to create the device with mknod etc.
I managed to mount an external SD card on my bricked tablet in TWRP after creating a Linux partition (Type 83) and formatting the card with mk2efs on my Linux PC.
This could be usefull to use some Linux binaries like device drivers or modules on the tablet.
that's interesting, i'll look into it
 

BrateloSlava

Senior Member
Sep 12, 2012
982
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Kharkiv
... skip ...
1. The tablet boots into TWRP
2. on my PC i rebooted the tablet with "adb reboot bootloader"
3. navigating to the android icon with "volume down" and boot into android with "volume up"
3. via "adb shell" i typed dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1;dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
... skip ....
I do not quite see the logic in such activities ...

The theory, as I know it.

/staging
The staging partition is used by the stock firmware to flash things like the bootloader/EBT or recovery/SOS partitions. They have to be in blob format then copied over to the staging partition. When you reboot, the tf will flash them automatically. As far as I know, you can flash an entire rom this way.

I don't think you need to format or wipe it.
/misc

This partition contains miscellaneous system settings in form of on/off switches. These settings may include CID (Carrier or Region ID), USB configuration and certain hardware settings etc. This is an important partition and if it is corrupt or missing, several of the device’s features will will not function normally.
I do not understand how the mashing of such an important partition as "/misc", can help? IMHO this section can not be touched at all.
 
Last edited:

pmtt

Member
May 5, 2013
6
1
0
I do not quite see the logic in such activities ...

It was the only working solution and a last-ditch attempt to fix the problem. Otherwise I had to send the tablet to ASUS.
Actually these activities are not logical to me too but I'll find out the logic behind the boot process - sooner or later ;).
For the time being my TF300 is working until the next brick...