So, here's my cautionary tale of why jumping into things without research is a bad idea.
TLDR: Nougat Android Pay doesn't like unlocked bootloaders; locking the bootloader can be a bad idea, and IMEI restoration seems to work (at least, if it partially worked with IMEI 0)
I just upgraded to an A2017U from a Nexus 5 on Marshmallow, which had its bootloader unlocked, with SuperSu installed but root disabled and hidden, and Android Pay set up. All fine and dandy.
When I got my Axon 7, I thought it'd be a good idea to unlock the bootloader in case I needed to recover data, so using the Axon 7 Toolkit and some guides, that went just fine.
However, when I tried using Android pay, I found out that it didn't work on bootloader unlocked devices on Nougat, so I thought I'd just lock the bootloader again.
One "fastboot oem lock" later, I found myself in a world of trouble. The phone wouldn't boot, but at least I still had the stock recovery. Tried putting one of the EDL zips on an SDcard to see if it would flash. Nope.
Tried the Axon7Toolkit's EDL mode unbricker, but due to MD5 mismatches/missing files, it wouldn't take.
Tried Tenfar's official B07 EDL flash. Got "Error: Bad format" when I tried it after deleting the two files he mentioned, so somehow, I thought it'd be a good idea to add those files back in and try again. Nope.
Then I tried flashing the B15 EDL image. Somehow got dropped into "Factory Test Mode" and couldn't leave.
Then I flashed the B19 EDL image, which, finally got me back onto a working OS, with a locked bootloader.
At this point, everything connected fine, but I found out that my IMEI was 0 in both SIM 1 and SIM 2. Didn't think about it too much at the time, since everything worked, until I realized I couldn't receive any calls (placing them was fine). The culprit? Wi-Fi calling and VoLTE (on my carrier, T-Mobile) was on. Disabling those worked, but I realized that these technologies probably needed a valid IMEI to work.
Thus, it was time to go back into the business of unlocking bootloaders; I followed the GizDev guide to reprogramming IMEIs, which worked on the rooted, stock B19 image (the only thing the guide doesn't mention is that you need to manually install the 901D driver from device manager; it showed up in the list of already-installed drivers, probably from the XiaoMi flash tool installation).
Now, with the original IMEI back in place, I was elated to find out that Wi-Fi calling and VoLTE worked again! And now, here I am, exasperated yet excited, to have restored the functionality of my Axon before that fated "fastboot oem lock". Now, only if I could find a way to get Android Pay working again...
Use Magisk. If you want to stay stock you have to use an older version. Look at the version used by bad boyz.
I have the same problem that was the method he used to restore his image and helped me to thank infinitely
Related
Hi all,
Wishing you all a happy New Year in arrears and the very best for the next 12 months.
I've got a problem with my device, its a STF-AL10 model with international rom bought during the November Sales.
It came with STF-L09C432B150 installed, I got the bootloader unlocked, TWRP installed and rooted with Magisk and was working fine except the capacitive buttons.
I thought I could live without capacitive buttons but I didn't work out and I had the urge to find a solution. After some intensive reseach (48hrs on a weekend in my 'lab') it seems the B120 firmware had no issues with the capacitive buttons, so I tried to downgrade to that and thats when the problems started.
Coming from an ancient Sony Z2, I never had issues flashing ROMS, Kernels and the sort as it was almost always easily done in TWRP or CWM (I had a Multi boot thing going, so I chose which recovery I fancied!). Anyway this are my issues now:
- Obviously, my phone was rebranded at origin as I know for sure AL-10 is not for EU market
- I tried restoring the same STF-L09C432B150 (rollback package found on XDA) with DC-Unlocker (wasted 19 Euro) but did not work. Always stops at 5% near end of flashing.
- Tried B130. same error.
- Tried Chinese STF-AL10C00B110. Same error.
- Tried full board flash for STF-AL10 with all DC Phoenix files. Same error.
- Tried forced method with files on a Sandisk SDcard (64GB) formatted to exFAT. Fails, wrong files.
- I noticed that in ADB, it said my bootloader was unlocked but FRP locked.
- After board flash, ADB said Bootloader unlocked (nothing about FRP) but in Muli-tool it says LOCKED.
- Now all ADB commands the write to the phone give errors.
DC-unlocker support keep on saying I should use the correct firmware for my phone, ok but the phone was rebranded at source...do use a Chinese firmware first then update ?
in desperation I did another full board flash but this time I think I wiped oeminfo and Vendor partions. ( I think this is what caused the HARD-BRICK!). Now no Honor logo, no Recovery, No eRecovery, nothing but a blank black screen. ADB still works but no status about bootloader or FRP.
IMEI has changed to 0123456789ABCDEF
You can all laugh and shake your heads which I will take as my punishment but is there a solution to all this, I'm willing to pay another 19 EUR for DC-Phoenix if it helps to fix my phone and if possible get it rooted with all buttons and functions working. That was my intension all along (I'm not really interested in custom Roms, just root access!).
HCU tool for some reason does not install on my computer, and besides, the phone does not boot into an OS to be able to change OEM and VENDOR data.
I even tried the HOTA.zip in the ReBRAND HONOR 9 thread but the file is missing (link down).
And to top it all there is no UK service center.
Please advise...
I think DC unlock is not supported for thì this model. Did Did you try Huawei Funky???
Apparently all versions of Honor 9 are supported by DC-unlocker and DC-Pheonix....
ums1405 said:
Hi all,
Wishing you all a happy New Year in arrears and the very best for the next 12 months.
I've got a problem with my device, its a STF-AL10 model with international rom bought during the November Sales.
It came with STF-L09C432B150 installed, I got the bootloader unlocked, TWRP installed and rooted with Magisk and was working fine except the capacitive buttons.
I thought I could live without capacitive buttons but I didn't work out and I had the urge to find a solution. After some intensive reseach (48hrs on a weekend in my 'lab') it seems the B120 firmware had no issues with the capacitive buttons, so I tried to downgrade to that and thats when the problems started.
Coming from an ancient Sony Z2, I never had issues flashing ROMS, Kernels and the sort as it was almost always easily done in TWRP or CWM (I had a Multi boot thing going, so I chose which recovery I fancied!). Anyway this are my issues now:
- Obviously, my phone was rebranded at origin as I know for sure AL-10 is not for EU market
- I tried restoring the same STF-L09C432B150 (rollback package found on XDA) with DC-Unlocker (wasted 19 Euro) but did not work. Always stops at 5% near end of flashing.
- Tried B130. same error.
- Tried Chinese STF-AL10C00B110. Same error.
- Tried full board flash for STF-AL10 with all DC Phoenix files. Same error.
- Tried forced method with files on a Sandisk SDcard (64GB) formatted to exFAT. Fails, wrong files.
- I noticed that in ADB, it said my bootloader was unlocked but FRP locked.
- After board flash, ADB said Bootloader unlocked (nothing about FRP) but in Muli-tool it says LOCKED.
- Now all ADB commands the write to the phone give errors.
DC-unlocker support keep on saying I should use the correct firmware for my phone, ok but the phone was rebranded at source...do use a Chinese firmware first then update ?
in desperation I did another full board flash but this time I think I wiped oeminfo and Vendor partions. ( I think this is what caused the HARD-BRICK!). Now no Honor logo, no Recovery, No eRecovery, nothing but a blank black screen. ADB still works but no status about bootloader or FRP.
IMEI has changed to 0123456789ABCDEF
You can all laugh and shake your heads which I will take as my punishment but is there a solution to all this, I'm willing to pay another 19 EUR for DC-Phoenix if it helps to fix my phone and if possible get it rooted with all buttons and functions working. That was my intension all along (I'm not really interested in custom Roms, just root access!).
HCU tool for some reason does not install on my computer, and besides, the phone does not boot into an OS to be able to change OEM and VENDOR data.
I even tried the HOTA.zip in the ReBRAND HONOR 9 thread but the file is missing (link down).
And to top it all there is no UK service center.
Please advise...
Click to expand...
Click to collapse
Try stock service B130 firmware:
https://forum.xda-developers.com/honor-9/how-to/stf-l09c432b130-capacitive-buttons-100-t3729106
Instead of step 4 do forced upload: VOLUME UP + VOLUME DOWN + POWER
Hi,
I've managed to re flash b150. In doing so I got back recovery and erecovery but when you reach that final stage of the process the phone stops at 5%. When I reboot to recovery, factory reset stops at 35%
Any ideas
?
Sent from my [device_name] using XDA-Developers Legacy app
ADB now showing BOOTLOAD UNLOCKED but there is no FRP status.
Sent from my [device_name] using XDA-Developers Legacy app
ums1405 said:
ADB now showing BOOTLOAD UNLOCKED but there is no FRP status.
Sent from my [device_name] using XDA-Developers Legacy app
Click to expand...
Click to collapse
FRP status is not only on Chinese phones
you need to sew firmware for al10
The phone was rebounded by the shop I bought it from.
It said STF-L09B150 indexical info when the phone was working.
So if I'm going to repair this brick what update files should I use?
Original Chinese or the b150 used when rebranded?
Sent from my [device_name] using XDA-Developers Legacy app
Hi all,
FYI, I've sent the phone back to the shop I bought it from.
I'll take my chances, better than paying money for something that may not work.
Thanks everyone for showing interest in my situation, I let you all know how I get along with this issue.
Ps.: As a community, lets push Huawei/Honor to release Kernel Sources for this model and others like the P10 Plus.
Ps: Huawei/Honor have to realise that a strong developer community adds value and desirability to a product. That's how a product becomes 'Cool' translating into more revenue/customers/profit - eg OnePlus.
.
Hi all, a quick update .....
Sent the phone back and from what I gather the phone actually had an issue with the main board.
Now enjoying a brand new MATE 10 (Non-pro with 6/128gb) in beautiful Obsidian black.
Wonderful.
Back in december/january some users reported a glitch while rebranding STF-AL10 to STF-L09 with the old nougat hwota (at oem bin flashing step).
After editing hwota script, then rebranded : they ended with a FRP locked status.
Their only way to unlock frp was with dcunlocker or funkyhuawei I don't remember.
After frp unlocked, their bootloader wasn't seen through fastboot.
I think this could be solved by regedit a value in registry.
To my knowledge the only public firmware files working with the dload way (3 buttons + usb connected) are the one titled "service repair", the others one won't work dload as they are. They are for hwota or forcing "official" ota.
Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
I'm with same problem here!
Suckmymfdick17 said:
Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
Click to expand...
Click to collapse
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
knjigo said:
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
Click to expand...
Click to collapse
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Suckmymfdick17 said:
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Click to expand...
Click to collapse
What do you mean with "I blocked my bootloader"?
Twrp is easy to flash. Root is integrated in ressurection remix rom. And this rom is great. Just try to flash twrp in Fastboot and than ressurection remix with twrp.
Can you boot in Fastboot?
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
tjgibri said:
I'm with same problem here!
Click to expand...
Click to collapse
I solved it, I finally flashed the stock rom to my phone and it works.
Apparently my pc was not flashing the stock rom in adb, and the phone turned off when loading the software. I did it 3 times until I load correctly and start well.
if you have the same problem apparently then OEM Blocking is not responsible. You have to flash the most current rom or the one that you had by default when the brick happened to you, you flash it in a normal way with commands of adb and ready, I would have to come back to life.
download from firmware center MotoZ Griffin the most current rom stock at 7.1.1
echo92 said:
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
Click to expand...
Click to collapse
Thanks for your help friend, I finally flashed it with a recent android 7.1.1 update. Apparently the OEM lockout was not the culprit, but it was an interrupted flash of android 7.1.1 at some point when loading the software to the phone, it would shut down on its own and not complete the installation, which showed me the mentioned message. I didn't realize that and thought it was the OEM blockade.
I finally did it on another pc and it worked. the phone came back to life.
I have one Moto Z2 Force (XT1789-05), bought from coolicool.com, I didn't know device came Unlocked Bootloader, Device rom had problem with many apps, I googled and found one topic in XDA developer to Install Stock Rom, I downloaded and Installed India Rom, it's worked somehow fine, but still had problem, I downloaded Verizon Rom, Android 8, after Installed Android 8 Verizon Rom, Locked device bootloader immediately, now device stuck at Welcome Wizard in Android 8, after select language I got this message: (Please wait, this may take a few minutes) this is proof video (http://ahmn.co/Upload/IMG_0161.MOV), after this issue, device already locked, I can't unlock, because need to go to the Developer Option in Setting, I stucked in Welcome Wizard, there isn't any bypass, So, I start to search in Google, XDA-Forum, Android Central and more, I created many threads, many requests, no one can't help me, I tried to reach google developer support to the tell to me how can I bypass Android 8 Welcome Wizard, there is must be a way, but I can't find it, now I can access to Android Recovery and Bootloader
1. if you help me to FORCE UNLOCK device without need Developer Option in setting my problem will solve
2. If you help me to Bypass Android Welcome Wizard, access setting and enable OEM Unlock
3. If you help me to update the device from Android 8 to Android 9 Verizon ROM via ADB Sideload or Update from SD card in Recovery mode
4. If you have any idea to how can I fix it
Extra Information: I bought Belkin and Uni USB-C to Ethernet Adaptor to help me bypass Android 8 Welcome Wizard, I bought WSKY WIFI Adaptor because device Wifi can't find any network (I found QR setup by tap several times in Language Selection), after this section need to download google device policy apk, my device can't find any Wifi Network and my Ethernet Adaptor can't help me either, So, I just remained with my phone, and I can't do anything,
Please, someone, help me
My Device SKU: XT1789-05
hi!
after reading all related post in this forum and searching google for ages, i am still not able to unlock my z5c's bootloader. it is not a lack of skills or know-how - i have successfully unlocked my z1c and z3c - but this one simply does not unlock.
i have tried both windows and linux, used shell and flashtool, all drivers properly installed, phone is correctly recognized, bootloader unlock is positive, oem unlock and usb-debugging are activated, phone is in fastboot but i still end up with error "command did not succeed". flashtool additionally shows "oem unlock not activated?". it is, but doesn't seem to have any effect.
i also tried to include the .txt file with the unlockcode into flashtools filestructure: flashtool does something but can't finish the unlock proccess and my phone is not resetting.
i even tried those one-click unlocker without success.
and there is something fishy about this phone: three month ago i got it brandnew from a vendor in china via ebay and first thing i did was connecting it to the pc companion to upgrade the firmware which was 5.1 and it told me, firmware was up to date... so i tried the repair option and it told me "that due to it's prototype status it can only be upgraded from certain ips" - although the phone does not show any hints of being a prototype, neither software- nor hardwarewise and even if it was, it wouldn't prevent the bootloader from being unlocked (afaik).
so you guys are my last hope! any further ideas???
regards,
andi
Hmm... Possibly not the solution but have you tried enabling "Unknown Sources" as well?
Another thing is - you can try flashing a later version of the firmware with Flashtool - one that is common. Afaik there are some versions that have trouble unlocking. Try flashing something like Nordic Unbranded, boot it up, make the settings again.
P.S. Flashing does NOT remove the old leftover firmware - it just writes on top. So you should format the partitions (/system, /data, /cache, /dalvik-cache) before flashing in order to start clean.
when i couldn't upgrade the firmware via pc-companion i used flashtool to flash 7.1.1 (some german version) which i kept ever since. so flashing a different firmware before unlocking is something worth trying? i thought of this as well but never actually tried it because i was just too lazy going though all the setup process again if the attempt failed just like the others... but i'll give it a try then!
and thanks for the input!
Hy,
For me i had to make two steps :
- Flash a non-branded firmware from Xperifirm
- Network unlock it (actually for me it unlocked automatically at the end of the warranty ). This step it is critical (as i was informed in the Sony store)
Then the normal cmd command through adb worked fine.
Basically for me the network lock / warranty was the issue that prevented me to unlock the bootloader
thank you very much for your Input! but there is no network lock...
what i was going to do was flashing a different firmware and try again - and there is something else i didn't think of: the usb2 connector of my mainboard is blocked by an infrared device to power up my pc by voice command via alexa and a harmony hub. and to still be able to use the front usb ports of my case i connected them with an adapter cable to a free usb3 socket on the mainboard…
so it might have been the firmware, the usb2 port on a usb3 socket or prototype-status that caused the trouble - but i'll never know cause basically i'll give up on that phone since more issues occured… i contacted the vendor yesterday and it seems i'll get a full refund!
i now got my hands on a shiny new galaxy s7 and hopefully i'll experience the joys of oreo 8.1 and lineage 15.1 anywhere soon without the hazzle!
thanks again for your help and regards,
andi
So basicaly I was being lazy and in a rush. I had done something like this before on much older phone(s) with no issues...
I backed up my working LG G5 in TWRP all partitions. I brought exactly the same model for my wife and wanted to restore my backup to that phone (I have made many customisations on my rom and didnt want to have to manually do it all again for her)
However after unlocking the bootloader, flashing TWRP and installing new base rom (all went fine) I then went to restore my old backup onto this new phone, stupidly I ticked all partitions to restore. I have a feeling that I should have only done the larger partitions. Once I rebooted I got the "cant be trusted" message, I reflashed in UPPERCUT but then the phone booted and then had secureboot enabled. I hit the wrong password (as there was none) 30 times which then forced a format. Now the phone boots fine and works 100% BUT...BUT....
I now can no longer unlock the bootloader as I think its trying to use MY phones bootloader (as its unlock.img says its the wrong one, I have tried both MY phones original unlock.img and my wifes new phones unlock.img but both dont work) I cannot relock the bootloader as it says its already locked... this also now means that through LG official software I cannot recover the phone. Only UPPERCUT can see the phone. I can get to download mode and fastboot.
Also the phones IMEI now says 0, this worried me however her SIM card is working 100% fine (I guess that the IMEI
is cached somewhere, but im worried that if I use some cleaning tools it may scrub it and then she will have no network access)
So basicaly if her phone starts to play up (or I want to upgrade it to Oreo / Lineage at a later date) can anyone offer me advice on how to...
A: Fix / Restore the bootloader (I dont mean recovery) Im confused as to if this is stored on a chip or can be reflashed from the kdz firmware images.
B: Resore the IMEI (I have it written down) incase we get any network issues in the future. Can it be resored or regenerated without some fancy hardware, ie only through software.
C: I dont have Root or TWRP access it seems, any way of Getting Magisk or Super SU on a phone without bootloader unlock, root access or TWRP?
I have had many years experience and never bricked a phone but almost did this time.
I decided to post a solution here, because it was one of the first Google results when I was looking for some help.
Long story short, I did exactly same mistake of restoring all partitions, including the EFS, between two same LG devices. Turns out it messes with IMEI, which is a big no no and phone locks. Now you can't unlock the device again, because there is no IMEI to use in unlocking. Also no flashing or erasing anymore, because it just fails.
So the IMEI needs to be restored first.
My phone was in a bootloop constantly showing the "cant be trusted" message, but I managed to fix that using LGUP. Apparently not all partitions are locked, because trying to flash the same system with LGUP fixed the bootloop, but failed to flash clean system and the data that TWRP flashed was still there. Trying to restore system to factory settings also fails, but it doesn't matter.
Fortunately I was able boot the system, which made fixing it easier than you'd expect:
1. Fixing the IMEI from booted system (no root or unlocking needed):
- Access the hidden menu on your device by dialing a proper number. For LG G5 H850 it is *#546368#*#850#
Where 850 in the last part is your phone model. The number will vary for different models.
- Go to SVC Menu -> CRCWIZARD Test
- Switch tab to Auto MID
- Here you can enter your new IMEI and WiFi and BT MAC addresses, or you can just generate it.
You can also use the generate option for all values and then manually change only the IMEI for the original one.
- Press MID Write button and reboot your device.
- That's it. IMEI issue should be fixed now.
2. Now that you restored your original IMEI, you can again unlock your device using the same unlock.bin file that you used to unlock bootloader the first time.
Voila. From now on the device is again unlocked and you can just go back to flashing whatever you need.
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
SM-T227U is an American model wich doesn't have the OEM unlocking option, you could unlock using unofficial ways but those are not pretty "stable".
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
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Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
evan5935 said:
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
Click to expand...
Click to collapse
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
If it has Mediatek chipset then you can use SP flash tool to format the tablet firmware and reflash it.
I would strongly recommend you to backup the NV DATA and NVRAM files before you format the tablet.
coocooguy246 said:
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
Click to expand...
Click to collapse
You can follow this guide actually! ( https://forum.xda-developers.com/t/...220-t225-install-lsposed-magisk-mods.4406933/) it recommends just skipping the setup junk
I have found that many times, rooting methods work across different models of the same device unless there are some sort of major differences in chipsets or some sort of random change lol
The only thing that doesn't seem to work for our model is section V of the guide which is for the removal of the "bootloader is unlocked" screen at startup. so you will still need to press the power button on that screen to boot up. It's a tiny hassle, but otherwise no big deal in my personal opinion
Make sure to read all the way to the end of the root section (section 4) and especially remember step 7. I retried probably 4 times and even patched the entire AP file of the firmware for use in odin (doing this gives a second warning on Knox screen that it isn't samsung official fw then boots normally into the bootlogo screen) before realizing everything was going fine.. I recommend just using the patched Magisk boot.img first just because I find it unsightly
Just flash the boot.tar in the AP slot. Don't download any of the boot imgs from the guide because they are for the t220's and t225's. I'll link the one I made according to the guide below. It'll save you some time and you won't need to install zarchiver and Magick just to have it factory reset again lol. Just download the latest Magisk apk (26.1) from the official github (https://github.com/topjohnwu/Magisk/releases) and install it when you have completed the 2nd factory reset/the patched boot img install.