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[Q] Custom recovery fails to load on TF700

First, thanks to anyone in advance who can help me get TWRP on my TF700. Some info:
ROM: Asus stock build JR003C.US_epad-10.4.4.25-20121228 (4.1.1, rooted)
Bootloader: US_epad-10.4.4.25-20121228 (unlocked)
Since I am rooted and unlocked, I took the simple approach of installing GooManager. In GooManager I used the Install OpenRecoveryScript menu item. GooManager downloaded and flashed openrecovery-twrp-2.5.0.0-tf700t.blob.
I then rebooted into recovery from GooManager. TWRP does not load. Instead, I get a picture of the android robot lying on its back with a red triangle and "!".
I tried repeating the above twice just to make sure and the behavior was the same.
So instead of GooManager I tried installing TWRP via fastboot. Holding down power and volume- together I booted into the bootloader selection menu and selected fastboot mode. I have all the ADT tools installed. I installed openrecovery-twrp-2.5.0.0-tf700t.blob using fastboot:
fastboot -i 0x0B05 flash recovery openrecovery-twrp-2.5.0.0-tf700t.blob
fastboot succeed writing the recovery. However, when I reboot and select RCK from the bootloader I still get the red triangle screen.
I've repeated flashing TWRP via fastboot several times with the same results.
I must be missing something simple. Thanks in advance for your help.

http://forum.xda-developers.com/showthread.php?t=1833212
[How-To] All-In-One Guide For Asus Infinity (TF700) [25/03/2013]
Sent from my EVO using xda premium

lmaugustin said:
I must be missing something simple. Thanks in advance for your help.
Click to expand...
Click to collapse
What you did doesn't look wrong. Are you sure your bootloader is unlocked?
You could also try the third way to install TWRP, via the staging partition: Move the blob to the device and run these commands in an adb shell:
su
dd if=/sdcard/openrecovery-twrp-2.5.0.0-tf700t.blob of=/dev/block/mmcblk0p4
Then reboot. The bootloader should show a blue (slightly broken) progress bar when it copies the recovery from the staging partition to the recovery partition.

_that said:
What you did doesn't look wrong. Are you sure your bootloader is unlocked?
You could also try the third way to install TWRP, via the staging partition: Move the blob to the device and run these commands in an adb shell:
su
dd if=/sdcard/openrecovery-twrp-2.5.0.0-tf700t.blob of=/dev/block/mmcblk0p4
Then reboot. The bootloader should show a blue (slightly broken) progress bar when it copies the recovery from the staging partition to the recovery partition.
Click to expand...
Click to collapse
Thank you. This wasn't the problem, but prompting me to go into a shell and poke around a bit did solve my problem.
I noticed the number of bytes written on the dd looked odd, so I checked the md5sum. It was a corrupt twrp download.
I downloaded the TWRP image file again, verified the md5sum, flashed it, and it worked.
My apologies for bothering everyone with the thread.

[Q] How To Unbrick? Only in APX Mode

My Asus TF300TG is bricked. I want to make a format to all. When I push the button > Factory Reset. It's closed and open to TWRP recovery. Only thing is working APX. My Version JB. How can I unbrick this.

My Asus TF300TG is bricked
Did TWRP able to mount system, data and oter partitions? If yes You may format mmcblk0p4 and mmcblk0p3 to get acces to reboot into installed android. TWRP should have adb interface, so You can use it to reboot into bootloader and flash rom through fastboot.
To format mmcblk0p4 and mmcblk0p3 use in twrp terminal
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1
dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1

Graiden05 said:
Did TWRP able to mount system, data and oter partitions? If yes You may format mmcblk0p4 and mmcblk0p3 to get acces to reboot into installed android. TWRP should have adb interface, so You can use it to reboot into bootloader and flash rom through fastboot.
To format mmcblk0p4 and mmcblk0p3 use in twrp terminal
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p4 bs=100 count=1
dd if=/dev/zero of=/dev/block/mmcblk0p3 bs=16 count=1
Click to expand...
Click to collapse
No I cant reach sd or system. TWRP says "Cant Mount".
Sorry For Bad English.

sirreddot said:
No I cant reach sd or system. TWRP says "Cant Mount".
Sorry For Bad English.
Click to expand...
Click to collapse
Are you saying that you are automatically booting into TWRP and can't get to the bootloader?
If you can still get into TWRP then type.
adb reboot bootloader
To get you to the bootloader menu and then try following the next link.
http://forum.xda-developers.com/showpost.php?p=44244313&postcount=12

flumpster said:
Are you saying that you are automatically booting into TWRP and can't get to the bootloader?
If you can still get into TWRP then type.
adb reboot bootloader
To get you to the bootloader menu and then try following the next link.
http://forum.xda-developers.com/showpost.php?p=44244313&postcount=12
Click to expand...
Click to collapse
Yes. It's automatically booting into TWRP. But nothing is work. SD EXT.SD, Mounts. Terminal Nothing. I will upload a video clip in youtube

sirreddot said:
Yes. It's automatically booting into TWRP. But nothing is work. SD EXT.SD, Mounts. Terminal Nothing. I will upload a video clip in youtube
Click to expand...
Click to collapse
You need to install adb drivers on your computer and connect it when in TWRP.
Then bring up a command window on PC and type.
adb reboot bootloader
to put you in the bootloader menu.

flumpster said:
You need to install adb drivers on your computer and connect it when in TWRP.
Then bring up a command window on PC and type.
adb reboot bootloader
to put you in the bootloader menu.
Click to expand...
Click to collapse
It isnt found tablet.

sirreddot said:
It isnt found tablet.
Click to expand...
Click to collapse
You can still access adb while in TWRP. Do you have any devices in device manager that do not have drivers installed?
Either that or try it on another PC as you should have adb access.

flumpster said:
You can still access adb while in TWRP. Do you have any devices in device manager that do not have drivers installed?
Either that or try it on another PC as you should have adb access.
Click to expand...
Click to collapse
Look. I am only reach apx mode and TWRP. But in twrp adb cant reach laptop.

[Q] error entering recovery ! triangle

I am unable to boot into recovery on my tf300t. I can get to the menu with 3 icons I select RCK and it shows installing system then Error!
I still was able to unlock and root the device but I still can't get past error or figure out how to install a new recovery.
Any help?
Thanks

Grem135 said:
I am unable to boot into recovery on my tf300t. I can get to the menu with 3 icons I select RCK and it shows installing system then Error!
I still was able to unlock and root the device but I still can't get past error or figure out how to install a new recovery.
Any help?
Thanks
Click to expand...
Click to collapse
The error triangle means you have to install a recovery (before you use it).
Make sure the recovery you will install is compatible before flashing it.

cmendonc2 said:
The error triangle means you have to install a recovery (before you use it).
Make sure the recovery you will install is compatible before flashing it.
Click to expand...
Click to collapse
All instructions I find for flashing a recovery have you booting into RCK to flash it. Is there another way?

Grem135 said:
All instructions I find for flashing a recovery have you booting into RCK to flash it. Is there another way?
Click to expand...
Click to collapse
You can use Terminal Emulator to flash it if you are rooted correctly.
Code:
su
dd if=/sdcard/twrp.blob of=/dev/block/mmcblk0p4
Make sure you install the -42 version.

cmendonc2 said:
You can use Terminal Emulator to flash it if you are rooted correctly.
Code:
su
dd if=/sdcard/twrp.blob of=/dev/block/mmcblk0p4
Make sure you install the -42 version.
Click to expand...
Click to collapse
Thanks for the help. I finally can boot into recovery. It took a bit to realize sdcard meant internal memory not the microsd like on my phone.
Thanks button hit. :good:

[Q] New Android update bricked phone.

Just got a notice that there was an Android update, I'm assuming a small patch. But now I'm stuck in at the LG boot logo. I can still boot into TWRP recovery. But no matter what I can't start my phone all the way up. How do I fix this?

gpitner said:
Just got a notice that there was an Android update, I'm assuming a small patch. But now I'm stuck in at the LG boot logo. I can still boot into TWRP recovery. But no matter what I can't start my phone all the way up. How do I fix this?
Click to expand...
Click to collapse
You should never install updates if you have installed a custom recovery.
Did you do a factory reset from recovery? That should fix it.
If doing a factory reset doesn't fix your phone, then you need to flash your stock firmware or a custom rom.
Cheers

What worked for me was from the TWRP terminal command was to type:
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
then hit enter,
and type:
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/misc
then hit enter and reboot.
However I won' take credit for coming up with this, Weston Madsen over at androidcentral and the IRC xda-devs helped me put it all together. A huge thanks to them!

never do update if you have a custom recovery

Stuck in boot loop. Please help!

I was running on rooted H83020a with TWRP and SuperSU installed. I wanted to upgrade to 20N, and I downloaded Zip file from https://forum.xda-developers.com/tm...t/stock-h830-20n-zips-kdz-2017-12-01-t3732851
Below is the steps I followed:
1. Take a complete backup using LG Backup
2. Boot into TWRP using Quick Reboot Pro App
3. Flashed Complete Zip (H83020N) from TWRP
4. Flash SuperSU Zip (v2.82 downloaded from www.supersu.com)
5. Reboot System
I am now stuck in a boot loop. Phone shows LG logo and reboots again and again. I tried the Power button + Vol Down method, but, it doesn't work too. It gets to Factory reset screen, and after Yes and Yes, it goes to back to boot loop again. I am able to get into Download Mode and Fastboot Mode. Can I do something from here?
Can someone help please? Anyway to get into TWRP or recovery?

Thanks to @waylo. I flashed back to 20A using LGUP and KDZ file. Need to dirtycow back TWRP now. I'm still wondering what went wrong in my process.
1. Take a complete backup using LG Backup
2. Boot into TWRP
3. Flash Complete Zip (H83020N) from TWRP
4. Flash SuperSU Zip
5. Reboot System
Click to expand...
Click to collapse
Do I need to reboot to TWRP once after flashing instead of Reboot System directly after flash? Any idea?

Please help me
I have LG G5 H860 with the same case like you sir, please give me trick to repair my phone sir...

Boot into twrp and run this from an adb shell:
dd if=/dev/zero of=/dev/block/bootdevice/by-name/misc bs=256 count=1 conv=notrunc
This should fix the boot loop. Don't forget the bs, count and conv parts. They avoid overwriting your imei and other useful information.

drmarble said:
Boot into twrp and run this from an adb shell:
dd if=/dev/zero of=/dev/block/bootdevice/by-name/misc bs=256 count=1 conv=notrunc
This should fix the boot loop. Don't forget the bs, count and conv parts. They avoid overwriting your imei and other useful information.
Click to expand...
Click to collapse
Thanks! it solve my problem
my device stuck in twrp after perform a factory reset on android settings menu.
with this command I didn't have to re-flash!