Develop Bugs

[Q] Help [ Error] backtrack boot

3 day i fix it Pizz help
[ info Lg optimus L5 (LG-E612f) unlock root and install busybox ]
backtrack run err
>> run abd shell <<
su
sh bootbt
[Error]
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
she 110android/mnt/sdcard/external_sd/bt # sh bootbt
sh bootbt
mkdir failed for -p, File exists
ioctl LOOP_SET_FD failed: Bad file number
net .ipv4.ip_forword = 1
chroot : can't execut '/bin/bash' :No such file or directory
shutting down Backtrack ARM For Xoom
failed: Invalid argument
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
i dont no how to fix pizz help thanks for a good time for me :crying:

Partition change failed

i was updating my phone firmware and it cause problem it stop and give error
[23:26:37] # # [ERROR ] : Partition change failed

same for me i stay with 5 feb version

How to Unbrick SM-A720F ?! (FRP = On) | E:failed to mount /efs | Combination not work

Hi everyone
I have some questions about Samsung SM-A720F
here is Samsung SM-A720F which has frp lock ! (FRP = On)
I know how to solve this problem, but it has another problem that doesn't let the device to become Ok.
First, the "System Status = Custom" in Downloading Mode , which usually flashing device with Official Firmware it should be changed to "Official
it's wired !!! I've tried 10 different Firmwares with correct binary (the phone's binary is 3 and firmware's binary is also 3)
but it doesn't changed to "Official" ( still System Status = custom :| )
note : i also tried combination files on this phone !
Second , after device flashing , it's just rebooted to recovery mode and shows the below error messages :
- E:failed to mount /efs (Invalid argument)
- E:failed to clear BCB message: failed to find /misc partition
- dm-verity verification failed...
As i know flashing the custom recovery on phone and adb commands solved my problem ! but frp lock is on and i can't flash the custom recovery !!!
note : phone not booted after flashing !
Does anyone know how to deal with this ?!

same problem
My phone also same problem
1) i try to solve from twrp but any rom flashing time - E:failed to mount /efs (Invalid argument)
2) i flash from odin its showing pass but till now mobile booting not complet.
3) i tryied from smart switch also s/n not correct.
please help me before i was used hadesh rom.
SM-A720f/ds
Android IR said:
Hi everyone
I have some questions about Samsung SM-A720F
here is Samsung SM-A720F which has frp lock ! (FRP = On)
I know how to solve this problem, but it has another problem that doesn't let the device to become Ok.
First, the "System Status = Custom" in Downloading Mode , which usually flashing device with Official Firmware it should be changed to "Official
it's wired !!! I've tried 10 different Firmwares with correct binary (the phone's binary is 3 and firmware's binary is also 3)
but it doesn't changed to "Official" ( still System Status = custom :| )
note : i also tried combination files on this phone !
Second , after device flashing , it's just rebooted to recovery mode and shows the below error messages :
- E:failed to mount /efs (Invalid argument)
- E:failed to clear BCB message: failed to find /misc partition
- dm-verity verification failed...
As i know flashing the custom recovery on phone and adb commands solved my problem ! but frp lock is on and i can't flash the custom recovery !!!
note : phone not booted after flashing !
Does anyone know how to deal with this ?!
Click to expand...
Click to collapse

[SOLVED] Unable to flash a rom or restore after motherboard replacement (t700)

Hello,
My tablet had a battery drain problem so I changed the motherboard and tried to install lineageos 14.1 again.
After replacing the motherboard, I turned on the tablet to activate usb debugging. The rom installed wasn't "complete", it looked like an interface for professionals to copy data from the old motherboard to the new... Maybe one of you knows what I'm talking about.
I flashed twrp and booted in recovery mode. Then I tried to wipe data but got errors (for instance "cache partition not found" or "hidden partition not found" or something like this. I'm sorry I didn't copy the error message :/
I tried to reboot anyway but I'm now unable to boot on the rom nor on recovery mode. I have a message : "POWER RESET or UNKNOWN UPLOAD MODE" and "ATconsole=ram loglevel=4 sec_debug. Level=1 cluster_power=1 androidboot. debug_level=0x494d sec_"
Only download mode is working.
So I'm trying to install the stock rom, downloaded from sammobile. On linux via Heimdall I got this error when flashing system.img and hidden.img :
Code:
Uploading SYSTEM
0%
1%
ERROR: Failed to unpack received packet.
ERROR: Failed to confirm end of file transfer sequence!
ERROR: SYSTEM upload failed!
Ending session...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer. Retrying...
ERROR: libusb error -7 whilst sending bulk transfer.
ERROR: Failed to send end session packet!
Releasing device interface...
On windows via Odin, I cannot flash the tar.md5 file either, it fails.
Someone could help ?
Or at least explain why I got these errors in twrp?
Thank you very much !!!!!!

Update :
I found a way to boot in recovery mode (twrp 3.3.1-klimtwifi) : unplug the battery, replug it and home + vol up + power.
So here is the error when I try to wipe data : "Failed to mound '/hidden' (Invalid argument)"
I installed the old motherboard and I'm doing a full backup on my sd card on TWRP, including EFS partition.
On the new motherboard I can't restore the backup because in twrp > restore > sd card : "No partitions selected to restore".
So here's where I am now :
I can boot into twrp but have an error message when trying to wipe data.
I have a full backup of the old motherboard with lineageos installed and working but i'm not able to restore it
Any help appreciated

And also, when I try to sideload the lineageos zip file I get this :
Code:
Starting ADB sideload feature ...
Installing zip file '/sideload/package.zip'
Target: samsung/klimtwifixx/klimtwifi:6.0.1/MMB29K/T700XXU1CRF1:user/release-keys
detected filesystem ext4 for /dev/block/platform/dw_mmc.0/by-name/SYSTEM
Patching system image unconditionally...
E1001: Failed to update system image.
Updater process ended with ERROR: 7

Ok, I fixed the restore issue by moving the backup files to : sd_external/twrp/BACKUP/[myserialnumber]
So now I can restore all partition except System, System Image and Hidden.
Error : extractTarFork() process ended with ERROR: 255
I still can't sideload the custom rom. But the error message "Failed to mound '/hidden' (Invalid argument)" disapeared

I fixed/unbricked the tablet by using SamFirm to download a 3 files stock firmware.
I installed it with Odin and it worked like a charm.
Then I could install a custom rom

Problem rooting with XiaoMiTool V2

Hello everyone,
I tried to root my Mi Mix 2 with XiaoMiTool V2 but I have got a problem during the step of pushing file magisk_20.4.zip.
In the log, I can see :
[10:07:04][PSTA ][70c729f4] Start process (781): "C:\Xiaomi\XiaomiTool2\res\tools\adb.exe" "-s" "ebf1f094" "push" "C:\Xiaomi\XiaomiTool2\res\tmp\magisk_20.4.zip" "/sdcard/magisk_20.4.zip"
[10:07:05][PROC ][55e63029] Process (781) output: adb: error: failed to copy 'C:\Xiaomi\XiaomiTool2\res\tmp\magisk_20.4.zip' to '/sdcard/magisk_20.4.zip': remote couldn't create file: No such file or directory
[10:07:05][PROC ][55e63029] Process (781) output: C:\Xiaomi\XiaomiTool2\res\tmp\magisk_20.4.zip: 1 file pushed, 0 skipped. 48.9 MB/s (5942417 bytes in 0.116s)
[10:07:05][INFO ][70c729f4] Process (781) ended with exit code: 1, output len: 268
[10:07:05][ERROR ][70c729f4] Task error: exception: Failed to push file to the device: adb: error: failed to copy 'C:\Xiaomi\XiaomiTool2\res\tmp\magisk_20.4.zip' to '/sdcard/magisk_20.4.zip': remote couldn't create file: No such file or directory : AdbPushTask -> status: RUNNING
Can you help me ??
Thanks by advance !

Do you know an other way to root it easily ?
Thanks by advance.