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[Q] Prevent CWM start from Bootloader?

With CM7 installed I am able to start CWM from bootloader by selecting "RECOVERY". Clockworkmod recovery itself has full adb support, so everyone who has stolen / found my Nexus S can gain full root access via USB simply by rebooting into CWM.
Is there a way to prevent this? Or a CWM version without adb support?
I'm worried about my google/dropbox/mail account - is adb root access for everyone with a simple USB cable a security issue?

I don't it's a good idea, but if the recovery partition contains only recovery, then you can format the recovery partition to prevent from booting it. Then keep your bootloader locked, so the only way to get access to the phone is to unlock the bootloader, which will wipe the phone clean.
Don't try it unless you are 100% sure though, I've read another guy whose brother formatted every partition in the phone, and the phone became bricked with no fastboot mode as well. I don't know which partition contains fastboot mode.

By what steps can I recover text and image files from Sony Xperia in bootloop?

I am working with a Sony Xperia L, with Android 4.1 or 4.2. A different model but I believe you will know the issues involved. The phone was stuck in bootloop. I have now put it into fastboot mode. I am trying to recover text and image data (jpegs).
I want to use something like adb, testdisk, or photoRec. But neither adb (or testdisk) recognises the device. It appears I have to enable USB debugging, but I don't know how to do this because I cannot access the phone controls, since it is running now only in fastboot mode, or in bootloop if I restart it.
So right now I cannot get up a proper adb shell or anything else that might recognise the data. (I notice fastboot devices gives a device name, but other fastboot commands do not work, and fastboot does not recover data, does it?).
By what steps ought I proceed to recover test and image data when this phone is in fastboot mode? or the original bootloop which is causing the problem?
Many thanks in advance.

I would try to reflash the device with Androxyde's flashtool and not wipe the data in the process.
The bootloader has to be opened in the process.
I do not know what recovery procedures the SONY tools provide (companion, Emma) but I would check them out.

Thanks for that information. But as I understand it, rooting the device will wipe all existing data.
I need to gain access to the device while it is in fastboot mode without wiping the data I am trying to recover. Then I assume I would run adb, testdisk, photoRec, or whatever.

no root required
flashing a stock rom does not give you root rights
for my device there are only Sony roms available - so it might even work without opening the bootloader...
you are right: opening the boot loader wipes the device (factory reset)

[SOLVED] Computer doesn't detect phone in TWRP.

Somehow I messed up the encryption on my phone. I could start the device without giving my decryption password, while twrp did want a password, but marked my password as wrong. I didn't wanna work with such a messed up system anymore, since I had the risk of losing all my data if stuff went wrong. So I backed up everything, did a data format & wiped the other partitions via twrp. Now I wanted to push my rom to my device, but in twrp my device isn't found by the computer.
Fastboot does work.
How do I get my ROM onto my device? As far as I know fastboot doesn't have a way of pushing files.
Situation:
- Windows Laptop
- No OS on my phone
- TWRP without adb & mtp working
- Fastboot working flawless
EDIT: I disconnected my phone, booted it off, reconnected it while in twrp and it works!

Congrats!!

No fastboot recognised twrp. Go to fastboot mode

If you can enter twrp , then use otg .you can download any compatible ROM and gapps to otg and flash .

Help! Deleted EVERYTHING on ZTE N817

Okay, so when trying to flash CM ROM, I stupidly ended up wiping EVERYTHING in the "wipe" option. Trying to recover it, I tried sideloading the file through ADB, but TWRP would disconnect off the PC and say failed (TWRP version 3.0.2-0). Pushing a ROM zip won't work, as the phone only connects to the PC as ADB Sideload mode ('error: closed' is what it would say), and nothing else would work except sideload. I no longer have a working OTG cable, as my last one broke on me a week ago. The PC will not connect to phone on the 'Mount USB' option from TWRP. Plz help! I'm running out of ideas. I did make a backup (using Online Nandroid Backup, no it wasn't a zip) on the SD card, but TWRP will not read the SD card on my device. Note that the only thing I have is TWRP; no bootloader, no Fastboot, no nothing. Just TWRP.

TRiP_E said:
Okay, so when trying to flash CM ROM, I stupidly ended up wiping EVERYTHING in the "wipe" option. Trying to recover it, I tried sideloading the file through ADB, but TWRP would disconnect off the PC and say failed (TWRP version 3.0.2-0). Pushing a ROM zip won't work, as the phone only connects to the PC as ADB Sideload mode ('error: closed' is what it would say), and nothing else would work except sideload. I no longer have a working OTG cable, as my last one broke on me a week ago. The PC will not connect to phone on the 'Mount USB' option from TWRP. Plz help! I'm running out of ideas. I did make a backup (using Online Nandroid Backup, no it wasn't a zip) on the SD card, but TWRP will not read the SD card on my device. Note that the only thing I have is TWRP; no bootloader, no Fastboot, no nothing. Just TWRP.
Click to expand...
Click to collapse
You can connect to ADB but the adb push command isn't working when you try to move the ROM.zip to the device?
Get a new OTG cable.
The nandroid backup you made should have been done in TWRP and stored on extsdcard instead of the online backup, online backup is crap because it only works in certain conditions, it's useless when the device can't connect to a network.
Sent from my SM-S903VL using Tapatalk

Yes. ADB commands other than sideload will say 'error:closed', and ADB Sideload will just end up making the phone disconnect. At this point, I may HAVE to end up getting a new OTG Cable.
Yes, I was trying to do the backup on TWRP, but as it couldn't read the SD Card, I used Online Nandroid Backup. Then I realized that everything I was doing was completely stupid while I wiped EVERYTHING....

TRiP_E said:
Yes. ADB commands other than sideload will say 'error:closed', and ADB Sideload will just end up making the phone disconnect. At this point, I may HAVE to end up getting a new OTG Cable.
Yes, I was trying to do the backup on TWRP, but as it couldn't read the SD Card, I used Online Nandroid Backup. Then I realized that everything I was doing was completely stupid while I wiped EVERYTHING....
Click to expand...
Click to collapse
Yeah, new cable seems to be your only option.
Sent from my SM-S903VL using Tapatalk

Alright then, I'm going to go see where I can buy one. Thanks for the confrirmation.

I cant even mount the ****ing usb flashdrive through OTG!!!!! On other devices, it works fine, but on this device it doesn't even show the frickin USB-OTG option.

TRiP_E said:
I cant even mount the ****ing usb flashdrive through OTG!!!!! On other devices, it works fine, but on this device it doesn't even show the frickin USB-OTG option.
Click to expand...
Click to collapse
Try rooting the device and then use the Stick Mount app, if your device has the hardware to support OTG, that should enable it, but if your device does not have the hardware to support OTG then it doesn't matter what you do softwarewise or what you modify, it has to have the hardware or it can't do it at all.
Things like this are why I'd never buy or own a ZTE device of any kind. Relatively soeakibg, they are all junk.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Only thing is, I dont HAVE any system to boot in order to check that. I guess I'm out of luck, no wonder why others said this phone was crap.

TRiP_E said:
Only thing is, I dont HAVE any system to boot in order to check that. I guess I'm out of luck, no wonder why others said this phone was crap.
Click to expand...
Click to collapse
If you can use adb shell or fastboot, you can try getting a copy of system.img from someone with your exact device and dd or fastboot flash the img.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Any ADB commands other than Sideload will just respond as error:closed, as the computer only reads the system when in ADB Sideload mode. However, when trying to sideload a ROM, the phone will disconnect and say failed, while the computer stays on xfer: 0.00. Maybe I could get some instructions to fix that? Maybe a bad TWRP version? If so, I'm ****ed...

After reading other pols forums, it seems that I didn't have to delete the internal storage........

TRiP_E said:
Any ADB commands other than Sideload will just respond as error:closed, as the computer only reads the system when in ADB Sideload mode. However, when trying to sideload a ROM, the phone will disconnect and say failed, while the computer stays on xfer: 0.00. Maybe I could get some instructions to fix that? Maybe a bad TWRP version? If so, I'm ****ed...
Click to expand...
Click to collapse
Sideloading a ROM won't work.
Try
adb reboot bootloader
If you can boot to bootloader or fastboot you can try finding the firmware for another device that has all of the exact same hardware components that your device has then try fastboot flashing it or extract the separate .imgs from the firmware and use the fastboot commands to flash the boot.img and system.img.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

can't get into fastboot, ADB command says error: closed, while doing the command in terminal in the TWRP menu keeps me on ZTE screen (only reboot recovery works, not as ADB command but in terminal).

TRiP_E said:
Any ADB commands other than Sideload will just respond as error:closed, as the computer only reads the system when in ADB Sideload mode. However, when trying to sideload a ROM, the phone will disconnect and say failed, while the computer stays on xfer: 0.00. Maybe I could get some instructions to fix that? Maybe a bad TWRP version? If so, I'm ****ed...
Click to expand...
Click to collapse
I have most, if not all the. Img files for this I managed to successfully root, TWRP, and deKingoCrap my n817
I also have a nandroid of this phone, though mine is the qlink one

help.
equitube said:
I have most, if not all the. Img files for this I managed to successfully root, TWRP, and deKingoCrap my n817
I also have a nandroid of this phone, though mine is the qlink one
Click to expand...
Click to collapse
dude i need the twrp backup of the qlink variant. i formatted the system and got bootloop at zte screen

filldapipe said:
dude i need the twrp backup of the qlink variant. i formatted the system and got bootloop at zte screen
Click to expand...
Click to collapse
Did you ever get the TWRP for this? I have it in my dropbox pm me.
The issue were running into is that the TWRP on this model can't see the ext sd. The backup is 1.5 or 2gb which is usually too large to fit on the internal SD
Slacker is working hard at modding the Fstab file to make TWRP see that storage. Any ideas please let him or I know([email protected] or here )
I'm also working on an EquiMods custom ROM for this. Bare bones battery saver, switchable to performance when needed.
Anyone know if and how these can be overclocked?

I have a deodex rom done for this phone and also should have the working twrp recovery by morning. The cm11.0 ive been working on is almost done. I hope Everytime i flash it to phone i get white screen. Also im going to install xposed on it in the morning. I think i found the fix for that to work

Any news on this? I can't find anything that works with this phone. I have adb sideload working, but that's pretty useless from what I understand.

edsfunsite said:
Any news on this? I can't find anything that works with this phone. I have adb sideload working, but that's pretty useless from what I understand.
Click to expand...
Click to collapse
They obviously got something to work since there are members in this thread that have TWRP installed on their devices, that means they can at least root the device but I doubt there are any ROMs for this device.
Sent from my LGL84VL using Tapatalk

I've rooted my N817 but never made an Nandroid backup. I still have TWRP up and working but I've tried to flash the 2 roms I know of....they both "install" but when I try to boot It stays in the ZTE screen...Help!

Question Rebooting error after flashing firmware with Odin

Hello everyone,
I need some help with the following situation:
Using Odin I successfully flashed my Galaxy A32 5G with Android 13 (as indicated by the green PASS in Odin).
When the phone tries to reboot, I get the dreaded error message, "Can't load Android system. Your data may be corrupt....."
On my PC I issued the command, >adb devices, but no devices were found.
This is probably because I did not enable USB debugging, when the phone was still working.
I'm trying to avoid doing a factory reset, because I don't want all my data wiped.
According to the following article, you can flash an OTA file using "adb sideload" command, even without enabling USB debugging.
However, everything else I've read says that adb commands work only when USB debugging is enabled.
Fix “Can’t Load Android System Your Data May Be Corrupt” Without Reset​https://www.droidwin.com/fix-cant-load-android-system-your-data-may-be-corrupt-without-reset/
Can someone perhaps clarify whether or not USB debugging is required for using adb commands?
Thank you very much,
Peter

plee12 said:
Hello everyone,
I need some help with the following situation:
Using Odin I successfully flashed my Galaxy A32 5G with Android 13 (as indicated by the green PASS in Odin).
When the phone tries to reboot, I get the dreaded error message, "Can't load Android system. Your data may be corrupt....."
On my PC I issued the command, >adb devices, but no devices were found.
This is probably because I did not enable USB debugging, when the phone was still working.
I'm trying to avoid doing a factory reset, because I don't want all my data wiped.
According to the following article, you can flash an OTA file using "adb sideload" command, even without enabling USB debugging.
However, everything else I've read says that adb commands work only when USB debugging is enabled.
Fix “Can’t Load Android System Your Data May Be Corrupt” Without Reset​https://www.droidwin.com/fix-cant-load-android-system-your-data-may-be-corrupt-without-reset/
Can someone perhaps clarify whether or not USB debugging is required for using adb commands?
Thank you very much,
Peter
Click to expand...
Click to collapse
I think, In stock recovery only the adb sideload command works so it don't need USB Debugging to be turned ON.

aiSanaul said:
I think, In stock recovery only the adb sideload command works so it don't need USB Debugging to be turned ON.
Click to expand...
Click to collapse
Thanks for your input. Encouraged by your input, I read the article again and realized that I have to put the phone in sideload mode first.
So, I went back to the stock recovery mode and selected the menu item, "Apply update from ADB". Then I see the message on the phone, "Now send the package you want to apply....with adb sideload <filename>". Now that I thought the phone was in sideload mode, on the PC I entered ">adb devices". This time it recognized the device and displayed the device name. However, it also displayed the word, "unauthorized", after the device name. According to the article, if sideload is properly entered, it should display the word, "sideload".
Anyway I tried entering ">adb sideload update.zip", and I got the error message, "device unauthorized".
So, any idea how to get the phone to be authorized?
If this is not possible, I was thinking of replacing the stock recovery with a custom recovery like TWRP. This way I can at least back up all my data first before doing a factory reset. However, I believe installing TWRP requires the bootloader to be unlocked, which automatically wipes all data. So, this defeats the purpose of installing TWRP in the first place
Is there some trick to install TWRP without unlocking the bootloader?
Thank you

plee12 said:
Thanks for your input. Encouraged by your input, I read the article again and realized that I have to put the phone in sideload mode first.
So, I went back to the stock recovery mode and selected the menu item, "Apply update from ADB". Then I see the message on the phone, "Now send the package you want to apply....with adb sideload <filename>". Now that I thought the phone was in sideload mode, on the PC I entered ">adb devices". This time it recognized the device and displayed the device name. However, it also displayed the word, "unauthorized", after the device name. According to the article, if sideload is properly entered, it should display the word, "sideload".
Anyway I tried entering ">adb sideload update.zip", and I got the error message, "device unauthorized".
So, any idea how to get the phone to be authorized?
If this is not possible, I was thinking of replacing the stock recovery with a custom recovery like TWRP. This way I can at least back up all my data first before doing a factory reset. However, I believe installing TWRP requires the bootloader to be unlocked, which automatically wipes all data. So, this defeats the purpose of installing TWRP in the first place
Is there some trick to install TWRP without unlocking the bootloader?
Thank you
Click to expand...
Click to collapse
As you already know this is not possible without unlocking bootloader, I will explain further more to make it easy to understand.
If you don't unlock your bootloader and try flashing TWRP on your phone using ODIN Flash Tool then maybe your phone get into an veification error and your phone will end up in a softbrick. You can repair your phone by flashing your phone's stock firmware using ODIN Flash Tool, eventually you will wnd up loosing all your data.
Also unlocking bootloader in Samsung devices is so easy by turning OEM Unlocking in Developer options, but you don't seem to have access to your phone.
An Unlocked Bootloader is the PASS, which allows you to do custom thing to your phone. So without it, this won't work, maybe that is why you got that error “Can’t Load Android System Your Data May Be Corrupt”.
ALTERNATIVELY you can try flashing your phone's OLD original Stock Firmware using ODIN Flash Tool and see what happens. You can also try flashing TWRP through ODIN Flash Tool. Only flash OFFICIAL TWRP made for your device (if any), otherwise you don't have options I guess.
also Why didn't you Unlocked Bootloader before flashing a custom rom? because of warranty?

aiSanaul said:
As you already know this is not possible without unlocking bootloader, I will explain further more to make it easy to understand.
If you don't unlock your bootloader and try flashing TWRP on your phone using ODIN Flash Tool then maybe your phone get into an veification error and your phone will end up in a softbrick. You can repair your phone by flashing your phone's stock firmware using ODIN Flash Tool, eventually you will wnd up loosing all your data.
Also unlocking bootloader in Samsung devices is so easy by turning OEM Unlocking in Developer options, but you don't seem to have access to your phone.
An Unlocked Bootloader is the PASS, which allows you to do custom thing to your phone. So without it, this won't work, maybe that is why you got that error “Can’t Load Android System Your Data May Be Corrupt”.
ALTERNATIVELY you can try flashing your phone's OLD original Stock Firmware using ODIN Flash Tool and see what happens. You can also try flashing TWRP through ODIN Flash Tool. Only flash OFFICIAL TWRP made for your device (if any), otherwise you don't have options I guess.
also Why didn't you Unlocked Bootloader before flashing a custom rom? because of warranty?
Click to expand...
Click to collapse
Thanks very much for your detailed explanations and for your continued support.
Let me answer your question first about why I didn't unlock the bootloader before flashing a custom ROM. Let me backtrack and explain how this problem came about in the first place. My phone was doing an automatic system update two weeks ago (Android 13). After downloading and installing, it tried to boot up. That's when it got stuck in an infinite rebooting loop. At that point, I had no way to change any settings on the phone.
Also, to clear up any confusion, I was not trying to flash a custom ROM. I was simply trying to flash the stock ROM (Android 13), supposedly the same firmware version as the OTA that broke my phone after the automatic system update. I was thinking that perhaps there was an internet glitch during the automatic system update process, which corrupted the OS. So, I was just trying to re-install the same version as the OTA to see if that would solve the problem.
I had also thought about flashing the original version that came with the device (Android 11). But, I think I read somewhere that either Samsung phones do not allow the user to downgrade, or even if it does allow you do so, the downgrading process will wipe out the existing data on the phone. Perhaps you can confirm that or not?
In the meantime, as you suggested, I will look into how to flash TWRP.
Thank you