Develop Bugs

[Q] Recovery-Bootloader Locking and Unlocking

Hi all....
2 quick questions....
My Nexus LTE is rooted
when I try to boot into recovery......either with ROM Manager or fastboot...I get the Android with the red triangle.....is it because I have my bootloader locked???
Even though I unlocked it to root...I locked it just in case I have to bring it back to Verizon...
also......If I do have to unlock it to get to recovery.........after I unlock it...would I lose all my data and apps?

1. If you've not unlocked it yet then unlocking it will delete everything
2. You need to unlock it and then flash ClockworkMod to be able to flash a new ROM

I'm about to do this also.
Unlock, root.
I think what the OP is asking is once you unlock and root... can you relock the bootloader without messing up root?
Also when you unlock and it wipes your phone, does it erase everything I've copied over to the internal SD card? I have like 10gb's of music, files, pics, etc.
I think the answer to the above is YES. But just want to make sure. That would really suck as I normally wipe my phone often when crackflashing. Sometimes I'll flash a rom but find out mid-day that it sucks and it'll require a wipe and reload an older version.
Anyway, rooting seems easy enough. Push some files. I'm just curious about how the internal SD card plays its role in all this... as I've always had an SD Card.

hogowner said:
Hi all....
2 quick questions....
My Nexus LTE is rooted
when I try to boot into recovery......either with ROM Manager or fastboot...I get the Android with the red triangle.....is it because I have my bootloader locked???
Even though I unlocked it to root...I locked it just in case I have to bring it back to Verizon...
also......If I do have to unlock it to get to recovery.........after I unlock it...would I lose all my data and apps?
Click to expand...
Click to collapse
I am no expert - but I am pretty sure you are correct.
1. You re-locked your bootloader. So - no custom recovery.
2. Unlocking your bootloader is going to wipe everything. Including your "sd card partition" (whatever you want to call it). So if you have pictures or other important files you need - transfer them before you unlock your bootloader.
3. I would just leave it unlocked. If you need to lock it for warranty issues it is very easy to re-lock. Right? Isn't it something like...
Code:
reboot into bootloader
enter the fastboot command
fastboot oem lock
done
hope that helps. maybe someone will chime in.

So unlocking the bootloader will Kill your sd card files. What about normal wipes from CWM?

I rooted...(no custom rom...leaving it stock)...then relocked my bootloader.....
I then installed all the apps I wanted........
I also was able to get into CWR and make a backup...
now if I try to go into CWR I get the android with the red triangle
why? Is it because I locked the bootloaded? Is that why I get the red trianlge? because bootloader is locked? I can't even get into stock recovery and if it is...if I unlock the bootloader...It will wipe data..and I dont feel like doing that right now.....unless there is another way to get the red triangle fixed
EDIT::::::::::::::::::::: I went to my Rom Manger app...and I reinstalled CWR...and lo and behold.....I was able to boot into Recovery with no problem.....even with my bootloader locked.......

[Q] Confused over LTi5i bootloader access

Hi.
I'm a relative noob and have been round and round in circles, looking for the exact answer to my question.
Basically, my LT15i is a useless piece of junk - it constantly complains about space and when I did my last reinstall to factory settings, I did the bit that meant certain apps are forced to appear on the SD card instead of the internal.
Is is my understanding that unlocking the bootloader will give me even more freedom with the phOne and i can install another ROM onto it and uninstall crap that is taking up space - am I right? I want to make my phone better!
However, the sony site says that my phone cant be unlocked. And your site says it can be unlocked! What are the steps please that i need to follow in order to unlck the bootloader on my phone? I have searched and cannot find the answer anywhere. I would be so grateful for some help on making my phone better becuase most of the time I want to the phone out of the window!!!
Many thanks for your time
Lisa

1. Please reeeead a little on the general thread.
2. The lt15 is an amazing phone
------------------------------------
To your problem:
Actually the "root" gives te feature to remove junkapps
Unlocked bootloader allows costum roms and mods to your phone
After root you can use "link2sd", where you make a partition on your sd and connecting it with the app as an internal storage to get more space
Bootloader unlock status check:
Go to phone, write *#*#7378423#*#* goto the service info then config. If the rooting status of bootloader says yes, i suggest you to testpoint it to unlock. If no, the unlock have a price.
Sent from my LT15i using xda premium

As above, really. With root you can make enough modifications to the stock firmware, such as remove bloatware, backup apps, partition your sdcard, etc., to vastly improve the running. Unlocking the bootloader will let you use custom kernels that certain roms need, and it's 'relatively' straightforward. But if your phone can't be unlocked via Sony then there's normally a charge to unlock it via testpoint.

FAQ:

About to unlock my bootloader - concerns

Hey everyone,
Here's my current specs:
LT15i
4.0.4
2.6.32.9–perf
[email protected] #1
Mooded ICS 90.2
Bootloader unlock allowed: no (so I purchased a code)
Rooted and running CWM
So as the title says, I am about to unlock my bootloader but had some questions first. Ultimately my goal is to unlock my bootloader so I can flash the ArcKnight kernel and run the updated Mooded ROM.
1) After unlocking the bootloader, will it still be rooted and have CWM?
2) Do I have to keep the SD card in when I unlock the bootloader or can I remove it to prevent it from being wiped?
3) What are the exact steps I should take from a to z? (I have read tons of guides but most don't start off with my above settings/situation)
So far I have backed up via CWM, Titanium backup (for apps), MyBackup (system settings) and have also saved all my SD card contents on my PC.
This is how I thought this would go, and I could be very wrong lol so please correct me if I am.
Make backups with everything above, unlock bootloader, restore all backups (first the one from CWM, then Titanium, then MyBackup), flash kernel, update ROM, done?
Thank you!

After unlocking the bootloader, will it still be rooted and have CWM?
Click to expand...
Click to collapse
yeh
Do I have to keep the SD card in when I unlock the bootloader or can I remove it to prevent it from being wiped?
Click to expand...
Click to collapse
SD card has nothing to do with the actual phone itself, so yeh you can remove it (i think data wont be wiped)
What are the exact steps I should take from a to z? (I have read tons of guides but most don't start off with my above settings/situation)
Click to expand...
Click to collapse
http://www.youtube.com/watch?v=H9COw6Yxmv4&feature=plcp problem solved

MrModMan said:
yeh
SD card has nothing to do with the actual phone itself, so yeh you can remove it (i think data wont be wiped)
http://www.youtube.com/watch?v=H9COw6Yxmv4&feature=plcp problem solved
Click to expand...
Click to collapse
Thanks for the reply.
Can anyone else confirm what he has said (about retaining root, not needing the SD card plugged in when unlocking bootloader, etc)
I have seen that video before and wanted to ask a question. I have been told all I need to do is insert a "non accepted" SIM card in the phone, restart it and it will prompt me for a code, I enter my unlock code and that's it. Is the method in the video just another way of doing this? Any advantages/disadvantages?

Jay_42 said:
1) After unlocking the bootloader, will it still be rooted and have CWM?
2) Do I have to keep the SD card in when I unlock the bootloader or can I remove it to prevent it from being wiped?
3) What are the exact steps I should take from a to z? (I have read tons of guides but most don't start off with my above settings/situation)
Click to expand...
Click to collapse
1. Yes.
2. It's irrelevant.
3. Reread the guides.
Restore everything after you've updated/installed a ROM.

The process of unlocking the BL does not affect kernel, Rom, sd card, data.
After you change Roms and kernel you will have to restore.
Sent from my LT15i using xda app-developers app

Hey guys,
So I have run into a bit of a snag, sort of at a stand still. Bare with me as I am still pretty noobie to this whole thing.
My phones status is Bootloader unlock allowed: No. So I thought doing the method of inputting another SIM card into the phone and entering an unlock code would unlock my bootloader I appear to be wrong, did I only just unlock my SIM? When I go and check the status of it again the phone still says Bootloader unlock allowed: No.
So I figured I would attempt to move forward anyways. I am following all the steps in the guides but I cannot get the phone to boot into fastboot mode. When I plug the USB in I am holding the menu button. After a few seconds the LED does go blue for a few seconds but then it turns off and goes orange and takes me to the charging screen (as if you were charging your phone while it was powered off)
I have tried booting into fastboot mode via X-Parts as well as Flashtool with no luck. I am assuming I have failed to unlock the bootloader but am sort of stumped.
I am still searching/learning as we speak, but feel free to point me in the right direction! What am I doing wrong here guys?
Thanks again

If you changed the SIM, the code you bought was for SIM unlock, not unlock bootloader.
To unlock bootloader you need a dongle (I think it's called SETool) or something of that sort. There are people who have them and unlock BLs for a certain amount of money. Try contacting them.

RamEsRock said:
If you changed the SIM, the code you bought was for SIM unlock, not unlock bootloader.
To unlock bootloader you need a dongle (I think it's called SETool) or something of that sort. There are people who have them and unlock BLs for a certain amount of money. Try contacting them.
Click to expand...
Click to collapse
And the plot continues to thicken haha. I did stumble across this method earlier, seemed sort of complex so I was hoping to avoid it. I guess ill do a bit of digging into the SETool method now, assuming that's my only option at this point?

Uninstalling Android R Preview

Hello everyone. I installed the developer preview for Android R and i'm over it. I wanna go back to stock and I tried sideloading the OTA image and I get this message
update package is older than the current build. Downgrade not allowed.
My bootloader is locked so I can't flash the image through fastboot. I need help.

May update released might want to try that one.

hedgehogmd said:
May update released might want to try that one.
Click to expand...
Click to collapse
I tried but it didn't work.
I was on the phone with t-mobile to see if they could unlock my phone but we're having issues with the unlock app.
I miss the days of typing in a code and getting your phone unlocked.

As you have just learned, the developer previews are not the same as beta releases. With the beta releases, you can "quit" the beta program and have the old OS version reinstalled via an OTA update The preview releases have no such OTA reset ability. Therefore, you should not participate in the preview releases unless your phone is unlocked.
If the May release doesn't let you revert back, then I think the only option you will have is to wait until the beta is released. Join the beta and have it installed on your phone and then quit the beat and hope that the OTA update takes you back to stock Android 10. In theory I think it will.

you should use the flashall.bat script if you're installing the factory image. Though this will earase data. Just make sure you have USB debugging on
EDIT: I think you should still be able to unlock your bootloader
EDIT2: After reading a bit more I see that on carrier specific devices, OEM unlocking is greyed out until the phone is sim unlocked. But after you get the app working everything should work fine. Did you use another sim thats not from T Mobile?

RicardoSal24 said:
you should use the flashall.bat script if you're installing the factory image. Though this will earase data. Just make sure you have USB debugging on
EDIT: I think you should still be able to unlock your bootloader
EDIT2: After reading a bit more I see that on carrier specific devices, OEM unlocking is greyed out until the phone is sim unlocked. But after you get the app working everything should work fine. Did you use another sim thats not from T Mobile?
Click to expand...
Click to collapse
I put a different sim on the phone and it worked but it's b/c I did the temporary unlock. After 30 days the phone will be locked again. The phone won't let me unlock the bootloader unless it's a permanent unlock. The problem is I'll have to wait 30 days for the phone to re-lock. I wish t-mobile could just give me a code...
Lucky for me this phone isn't my daily driver but I wanted to revert to stock android b/c I got an invite to test out the Ratio launcher by Blloc. It's incompatible with Android R.

chivamex10 said:
I put a different sim on the phone and it worked but it's b/c I did the temporary unlock. After 30 days the phone will be locked again. The phone won't let me unlock the bootloader unless it's a permanent unlock. The problem is I'll have to wait 30 days for the phone to re-lock. I wish t-mobile could just give me a code...
Lucky for me this phone isn't my daily driver but I wanted to revert to stock android b/c I got an invite to test out the Ratio launcher by Blloc. It's incompatible with Android R.
Click to expand...
Click to collapse
Your best bet would be to just wait until you can permanently unlock it. I got mine from best buy and only recently did I bother with flashing roms on it.

I have a TMO device and had a temp unlock, and obviously it doesn't allow oem unlocking to be enabled. I DM'd TMOhelp on twitter and was able to get a permanent unlock there. They told me that I'd have to wait for my temp unlock to expire before I could perm unlock, but I didn't. If you have trouble with the app, just clear the storage and cache data for it. Once it is actually perm unlocked you'll immediately get a notification and be prompted to restart the phone. After that you should see oem unlocking enabled in dev options and be able to hit bootloader and unlock it.

Question SIM card - unlocking bootloader

I wasn't planning on using a SIM Card. I'm looking to unlock BL. The process requests me to put in a SIM. The phone cannot read my current SIM.
1. Should there be any problems if I put in my friend's SIM just to activate the 7 days unlock process?
2. Do I need the SIM later after the 7 days have passed and I'm proceeding to unlock the BL?
3. Can I use another SIM with the phone later on if I'm switching use case, or will it somehow be bound to the SIM I put in when unlocking BL?

No No Yes No

miravision said:
No No Yes No
Click to expand...
Click to collapse
Perfect, fast & concise! Thread can be closed