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Installing CWM Recovery on Unlocked RAZR M via terminal emulator

I ran the boot loader unlock exploit successfully. Had troubles flashing recovery. I don't own a computer. Hence my dilemma. Is it possible to flash custom recovery with terminal emulator? I have searched other forums and sites for hours now. I've tried the flash_image command. And just about any other options that I've found. What am I doing wrong? Its it even possible on the RAZR M? Do I have to use fastboot? Any help would be appreciated.

Here are some flashable recoveries. I have not tried them out, but I heard they work.
http://batakang.com/ftp/?dir=devs/mhous33/XT907/recovery-flashable_recoveries

You need to use the dd command and the full /by-name path to the recovery partition in terminal from root shell.
If you download the latest TWRP recovery image for scorpion-mini and rename it to twrp.img for simplicity then place it on the root of the sdcard then you would use the following commands to write the file with dd in the terminal emulator.
su
dd if=/storage/sdcard1/twrp.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery bs=4096
I strongly recommend backing up the current stock recovery first because without access to a PC you may need it to restore yours in the event of a problem.
su
dd if=/dev/block/platform/msm_sdcc.1/by-name/recovery of=/storage/sdcard1/recovery_original.img bs=4096
That will save your stock recovery and you can restore it using the first command and that file as if.

[Fix] Stuck at TWRPviaBump after installing 10L/any OTA?

all credits go to thecubed.
i feel sorry for the guy @ q&a section, that had the same experience . had to go through wipe.
will have to remember to update via lg pc suite now to retain apps etc. then just redo bump if ever. thanks autoprime,thecubed and the rest of the amazing devs.
http://forum.xda-developers.com/showthread.php?t=2451696
thecubed said:
Howdy all!
Did you install TWRP and then take the OTA, now you can't get your phone to boot normally, but you do see TWRP?
Here's the easy fix:
If you have ADB access, plug in your phone and run this:
Code:
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
Then you should be able to successfully reboot your phone via the TWRP menu option, or via a simple reboot command in adb.
If you DONT have ADB access (because of an early build of TWRP), you can simply use TWRP's awesome "terminal command" option to run the following:
Code:
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
You'll have to type that whole thing out, and be VERY careful with spaces and punctuation. One wrong letter and you could nuke your phone.
After that finishes, you can reboot and continue on your happy way!
Let me know if this helps anyone!
As usual, I'm on #lg-g2 in Freenode as IOMonster, if I'm around I'll be happy to help wherever I can.
Click to expand...
Click to collapse

http://forum.xda-developers.com/lg-g3/development/fix-stuck-custom-recovery-trying-ota-t2907508
if that doesn't work, try autoprime's with added step for misc.
after that you can delete the files located at (using es file explorer) device>cache>fota
autoprime said:
LG G3 Stuck in Recovery Fix
Background
This thread is to help those who get stuck in custom recovery every time they try to boot into the rom.. usually after trying to take an OTA. Now that we're all rooted and unlocked this might be needed soon. Inspired by IOMonster's [FIX] Installed TWRP and now you're stuck after OTA? thread for the LG G2. Sometimes wiping FOTA was not enough and wiping the misc partition was also needed. But wiping the entire partition isn't the best idea. I've made a flashable zip to automate this process to properly fix being stuck in TWRP/CWM due to "stuck fota" or "stuck misc"​Fix
Flash LG_G3_Flash2FixStuckRecovery.zip to backup the current stuck fota/misc partitions and then fix them to allow proper booting.
Flashing LG_G3_Flash2FixStuckRecovery.zip creates a backup of your FOTA and Misc partitions in the /sdcard/FOTAnMisc_Backup/ folder.
1. Download the LG_G3_Flash2FixStuckRecovery.zip and place it on your phone. You can use TWRP's MTP feature to copy it from computer to phone, use OTG w/connected storage containing zip or use adb push to get the file onto your phone...
Code:
adb push LG_G3_Flash2FixStuckRecovery.zip /sdcard/
DOWNLOAD FROM CODEFIRE HERE
2. Flash LG_G3_Flash2FixStuckRecovery.zip in recovery or use adb commands below to fix boot issues..
Code:
adb shell
su
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/misc bs=256 count=1 conv=notrunc
reboot
If you are still booting into TWRP/CWM then you may have accidentally flashed the custom recovery img to the boot partition slot instead of the recovery partition slot. Reflash the rom in TWRP/CWM which should fix the boot.img... or download the required boot.img, place on root of internal storage ( /sdcard/ ) and flash the boot.img in TWRP/CWM...
Code:
dd if=/sdcard/boot.img of=/dev/block/platform/msm_sdcc.1/by-name/boot
reboot
Click to expand...
Click to collapse

After LineageOS Update 08.31.2017 i stuck in bootloop into twrp

Hi,
i tried to update my phone via the integrated updater. It did not start the update and now fails booting into android. it boots every time into twrp.
i tried several possible solutions:
reflash other version
reflash the latest version
flashed fulmics
factory wipe
reflashed twrp
tried to
inshadesofgrey said:
If you get into a recovery boot loop (where the phone keeps booting into the recovery, and not the OS), this will fix it without losing any data. (NO FACTORY RESET NEEDED)
Go to TWRP recovery terminal commands, and enter the following:
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
PRESS ENTER
THEN TYPE
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/misc
THEN PRESS ENTER
REBOOT
This should boot up your phone without any changes.
Click to expand...
Click to collapse
but failed
now i am out of knowledge...
has anyone an idea?
Regards!
Christian

did you tried to restore everything to stock with a kdz file? you can find it on google and you can flash it putting the device in download mode and using lgUP / uppercut to do so.. if you need help you can send me a PM

one_ctrl said:
did you tried to restore everything to stock with a kdz file? you can find it on google and you can flash it putting the device in download mode and using lgUP / uppercut to do so.. if you need help you can send me a PM
Click to expand...
Click to collapse
Is there any better solution for this problem?
I solved it once with a full reinstall an this uppercut tool.
On reddit for other phones there is the solution to boot to bootloader and do
Code:
fastboot continue
resuming boot...
FAILED (remote: unknown command)
finished. total time: 0.001s
But this does not work.
It seems my phone boots to twrp because the lineage os updater app set s.th. to automatically boot to twrp. How can we remove this auto-boot to twrp flag?

Sorry for bringing up this again. I did an OTA update on lineageos on my lg g6. The phone booted correctly in twrp, I installed the update but now the phone boots directly to twrp without any way to let it boot the os. How did you resolve this?
Thanks

Only solution back to stock & after install LOS and wait until bug is fixed.

I use a lg g pad x 8.0 and ran into the same issue.
fastboot continue would not work.
the dd commands did not work either
I think the "msm_sdcc.1" is device specific.
In recovery, I used the file manager to look in /dev/block/platform and notice that "msm_sdcc.1" did not exist but there was one folder in there. I went in there and there was another and kept going til I found the "by-name" folder
then I ran the dd command replacing "msm_sdcc.1" with what was on my device.
I did it for "fota" and "misc" and then my device booted

Someone else has had this problem @gnackwatschn, you can find a way to fix the boot loop here https://forum.xda-developers.com/lg-g6/help/twrp-bootloop-lineageos-ota-update-t3746014/post75488796#post75488796

WARNING [brick]
eng3 said:
I use a lg g pad x 8.0 and ran into the same issue.
fastboot continue would not work.
the dd commands did not work either
I think the "msm_sdcc.1" is device specific.
In recovery, I used the file manager to look in /dev/block/platform and notice that "msm_sdcc.1" did not exist but there was one folder in there. I went in there and there was another and kept going til I found the "by-name" folder
then I ran the dd command replacing "msm_sdcc.1" with what was on my device.
I did it for "fota" and "misc" and then my device booted
Click to expand...
Click to collapse
WARNING! I ran into the same problem on the LG G6 with the nightly update dated Nov 1, 2018. Did what you did, but wrote down the command.
After navigating to the TWRP > Advanced > Terminal, first do
Code:
ls /dev/block/platform
Mine had one entrie: soc, which had two entries: 624000.ufshc and 74a4900.sdhci
only 624000.ufshc had a by-name directory containing fota and misc, so my commands ended up being:
Code:
dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/fota
dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/misc
The commands run, saying:
Code:
dd: writing '/dev/block/platform/soc/624000.ufshc/by-name/fota': No space left on device
8193+0 records in
8193+0 records out
4194304 bytes (4.0MB) copied), 2.783000 seconds, 11.5MBs
and similar for misc.
Reboot to system gives a warning, Your device has failed a routine safety check and will not boot.
Now I'm stuck.... guess its time to start another thread.

Boot from SD card. EMMC memory is dead

I have the wt86047(HM2014813,HM2XTDPro) and I have dead emmc on my phone. The internal /data /system and /cache partitions are unmountable. So I decided that I try to boot from sdcard.
I have used this tutorial Dual boot to partition my sdcard and modify the recovery and the rom(Lineage 14.1) to look for the system, data and cache partitions on sdcard.
But when I try to boot up the phone is stuck at the MI logo and I see my device in fastboot. To be able to boot to my device I need in fastboot to execute fastboot boot modifiedboot.img. This is not too much convenient as I need pc to turn my phone on. I also can only boot recovery and not to get to the recovery mode. I can however flash the image to the /recovery partition. I suspect that my /boot partition is also corrupted. I tried to manualy flash boot also with no succes. Any ideas how to boot the phone without need to use fastboot?

I have the exact same issue with the same phone.
You have modified only the fstab file ?

nings008 said:
I have the exact same issue with the same phone.
You have modified only the fstab file ?
Click to expand...
Click to collapse
In boot.img yes(fstab.qcom), in TWRP the etc/recovery.fstab and in the updater script any mention of /system and /data.
The phone boots with the fastboot boot, but it is quite slow as I have quite cheap sd card in it. I would buy a better one If I would be able to boot the phone without computer.
EDIT: Camera is also not working for some reason

Try folding the fastboot ROM.
Same thing happened to me. I tried and flashed the fastboot image. It worked. This happened to me a long time ago. Don't worry about bootloader if you can see the fastboot screen with the mi man on your phone .
http://bigota.d.miui.com/V8.0.1.0.K...DG_20160805.0000.29_4.4_global_daca6227c0.tgz
This is the link for the fastboot file for Redmi 2 aka wt88047 or any other version of the Redmi 2.
Just use the following method to flash using ADB and should be successful.
Steps to Flash MIUI Fasboot ROM Without Using Mi Flash Tool {Using Command Prompt}
We would like to suggest that Please use the Official Flashing method through Mi Flash Tool if that method didn’t work for you then try this method.
Below is the overall method to Flash MIUI 8/9 Using Command Prompt. The commands use in this method are pretty common. For most of the users are familiar with this Commands.
Quick Requirments:
Download Fastboot ROM of your device.
Xiaomi USB Driver & ADB Driver of your device.
Try Mi PC Suite if above USB Driver doesn’t work for you.
Flash MIUI Fastboot ROM Using Command Prompt
1. Download the Fastboot ROM you want to flash from the above download link. Extract the Downloaded Fastboot ROM in your Windows PC.
2. Enter into Download Folder. You will see some Files & Folder out there. Again go to Images Folder.
3. Boot your device into Fastboot Mode. To do this Switch off your phone. Now, Press Power Button + Volume Down button to boot your device into Fastboot Mode.
4.In that folder “Open Command Window” by Holding Shift Button + Right Click button of the mouse. You will see Command Prompt will open there.
5.Type following Command to check whether your device is connected or not.
fastboot devices
6. Below the command, If it shows the device then you are ready to flash. Now, Execute following commands one by one to flash the whole ROM.
fastboot flash system system.img
Press Enter to Continue
fastboot flash boot boot.img
Press Enter to Continue
fastboot flash recovery recovery.img
Press Enter to Continue
fastboot flash cache cache.img
Press Enter to Continue
Want Complete erase of data? All Data will be deleted it will be like new device. Then type this following commands.
fastboot erase userdata
Press Enter to Continue
fastboot flash userdata userdata.img
Press Enter to Continue
All Flashing process in complete. Now, Type the following code & hit enter button to Reboot your device normally.
fastboot reboot
That’s it! Congratulation! You have successfully Installed Latest MIUI Fastboot ROM. Your device bootloader is locked now & You device is unrooted. Please let me know if it helped.

d2211basu said:
Same thing happened to me. I tried and flashed the fastboot image. It worked. This happened to me a long time ago. Don't worry about bootloader if you can see the fastboot screen with the mi man on your phone .
Click to expand...
Click to collapse
This won't help. This is the hardware issue. The storage chip on the motherboard is dead. You can not write anything to it. It is possible to replace that chip but it is a quite difficult operation.

tulen_kobi said:
Any ideas how to boot the phone without need to use fastboot?
Click to expand...
Click to collapse
Looking for the same.
https://forum.xda-developers.com/android/help/how-to-boot-sd-card-qmobile-z8-bricked-t3712171

Redmi 2 Hard Bricked or Boot Dead Repair
tulen_kobi said:
I have the wt86047(HM2014813,HM2XTDPro) and I have dead emmc on my phone. The internal /data /system and /cache partitions are unmountable. So I decided that I try to boot from sdcard.
I have used this tutorial Dual boot to partition my sdcard and modify the recovery and the rom(Lineage 14.1) to look for the system, data and cache partitions on sdcard.
But when I try to boot up the phone is stuck at the MI logo and I see my device in fastboot. To be able to boot to my device I need in fastboot to execute fastboot boot modifiedboot.img. This is not too much convenient as I need pc to turn my phone on. I also can only boot recovery and not to get to the recovery mode. I can however flash the image to the /recovery partition. I suspect that my /boot partition is also corrupted. I tried to manualy flash boot also with no succes. Any ideas how to boot the phone without need to use fastboot?
Click to expand...
Click to collapse
Follow This Link
https://globaltech2u.com/how-to-bring-a-boot-dead-or-hard-bricked-redmi-2-back-to-life

modem backup

Hello guys i want to backup my modem .img for emergency situation ,please anyone help me..
Currently running stock nougat on my 1643 with twrp .

I'm not sure if you need to be rooted on your device before you perform this, this works for me whilst rooted with magisk:
1)Connect your device to your computer via the original USB cable or a high quality USB cable.
2)Boot your device to TWRP recovery.
3)Open an ADB terminal on your computer.
4)Open an ADB shell by entering 'adb shell' without quotes. Press Enter on your keyboard.
5)You should see a command prompt beginning with ~ and some random characters - you've got an ABD shell open.
6)Copy this command without quotes 'dd if=/dev/block/mmcblk0p1 of=/sdcard/modem.img' and right click in the ADB window to paste it (easier than typing it). Press Enter to execute the command, you should see some read/write speeds. This dd command copies, using the if input of mmcblk0p1 (mmcblk0 - your internal storage, p1 - partition 1. In other words, your modem partition) and outputs (the of parameter) a modem.img to the top level of your internal storage.
7)After copying, open your device on your computer (whilst still booted into TWRP on your computer). You should see a 100 MB modem.img file on your internal storage. You can then copy that image to your computer for safe keeping.

Thanks bro ,any athene twrp has modem backup function ?

Tengakallan said:
Thanks bro ,any athene twrp has modem backup function ?
Click to expand...
Click to collapse
I'm honestly not sure - shreps' TWRP 3.1.1 (32 bit) does not - only fsg backup. I'm not sure if the unofficial 64 bit TWRP or the official 32 bit TWRP can back up the modem.
Try to avoid flashing old firmware if you can, seems that one cause of losing your IMEI may be to do with flashing old/the incorrect firmware for your device.

echo92 said:
I'm honestly not sure - shreps' TWRP 3.1.1 (32 bit) does not - only fsg backup. I'm not sure if the unofficial 64 bit TWRP or the official 32 bit TWRP can back up the modem.
Try to avoid flashing old firmware if you can, seems that one cause of losing your IMEI may be to do with flashing old/the incorrect firmware for your device.
Click to expand...
Click to collapse
Once again thanks bro for help and instructions:good: