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
Hello everyone
Recently I've hard reseted my lenovo Phab (pb1-750n) mistakenly before removing my google account and unfortunately I stocked in google FRP lock, I've searched many sites and seen many videos to bypass the FRP with no success.
Finally I found a russian forum that uploaded the Chinese version of device ROM, since the google apps are banned in China therefore updating the ROM from recovery mode succeed (I downloaded ROM and put it in the SD card, then update the ROM from recovery) and device got back alive again. (NO Google NO FRP )
but the second struggle wave slapped my face, (NO google apps NO joy ), for instance I downloaded Gapps and tried to install it by replacing stock recovery with TWRP, so in device, I turned on developer mode by tapping build number many times and turned on USB debugging and oem unlock, see, I turned on damn oem unlock!!! but in the fastboot when I run the
Code:
fastboot oem unlock-go
, the result ends in oem unlock not allowed report and
Code:
fastboot flash recovery TWRP.img
also failed due to the bootloader lock status. BTW international ROM seems to be all in Chines clouds and is not accessible for non Chines people to download them, at least I couldn't do it.
any idea what is wrong in here????? did Chines made ROM to be like that???? any chance to solve the issue???
this happens because you do not unlock the bootloader, just released to unlock
jeangraff30 said:
this happens because you do not unlock the bootloader, just released to unlock
Click to expand...
Click to collapse
well, after updating system to the 6.0.1, problem solved, it seems android 5.1.1 stock ROM for this phablet do not allow to unlock bootloader, I found it in a russian forum, they said so.
anyway thanks for reply.
I write this post in the last hope of getting help from the community. I recently inherited an old Galaxy A7 2016 (A710F) android 6 version with A700FXXU2BPK1 base band version. The phone belonged to my mom, so I didn't think about it and did a system reset and deleted everything. Now I have a "100%" clean phone. The fact is that I would like to change the ROM with a lineage os. I can't proceed because when I unlock the developer options and activate the USB debugging according to the official guide, the "OEM unlock" item does not appear. This item is essential to flash the bootloader and have root permissions. I also tried to enter both my gmail and samsung account, but this option does not appear. I checked and in my galaxy S9 plus it is present. Do you have any suggestions on how to proceed, bring up the entry or root? A link with a guide is also fine. I have made many attempts and no guide seems to work, without that checkbox I do not proceed. I also tried the "trick" of postponing the date and time but it didn't work. then I can't install TWRP and proceed. As a last attempt I tried with odin but obviously I can't flash the bootloader because that box is not active. I trust in you.
Cheers
I bought an unlocked S21 from Samsung directly; it currently has "1OYM2AUC8" firmware on it with XAA CSC. There is no "OEM unlock" option anywhere in the developer options, and my KG status says "Completed" in download mode.
I was gonna install Magisk and go for it—I'm computer-savvy, but haven't rooted a phone since 2014, lol. However, looking around I found several posts saying that there is no working root method for this phone in particular, unless I'm misunderstanding something horribly? Can someone set me straight here?
auxy said:
I bought an unlocked S21 from Samsung directly; it currently has "1OYM2AUC8" firmware on it with XAA CSC. There is no "OEM unlock" option anywhere in the developer options, and my KG status says "Completed" in download mode.
I was gonna install Magisk and go for it—I'm computer-savvy, but haven't rooted a phone since 2014, lol. However, looking around I found several posts saying that there is no working root method for this phone in particular, unless I'm misunderstanding something horribly? Can someone set me straight here?
Click to expand...
Click to collapse
I've also been looking around for a solid root method for my device (G991U) and the only thing I've been able to find is a paid "token," which to my understanding is not a bootloader unlock and will not work on any post March security updated phone (i.e. my phone). I also am missing the OEM unlock option as well. With there being no guides and little to no activity on the forums I'm stuck on how to root this thing too. I've seen a couple of YouTube guides but they're for the exynos model (which also seems to have the OEM unlock option). Is there anyone working on an exploit or a way to unlock the phone bootloader? Is this token based from Samsung? It's been a while since I've rooted a Samsung phone and things look so different now. Could anyone she's some light on the subject for me and the guy I quoted? Tia!
Please let me know if you come back and find anything @pmacevad. I would really like to get this thing rooted.
US Samsung S series hasn't been bootloader unlockable since the S6 or S7, and root right now requires a $150 paid bootloader unlock. That's it. If you were looking for something easier, I suggest reassessing your need for root, or looking for another device.
How do i unlock my boot loader? I have enabled oem unlock in developer settings, but it doesn't give me option after going into download mode
I have:
Dragon1996 said:
How do i unlock my boot loader? I have enabled oem unlock in developer settings, but it doesn't give me option after going into download mode
I have:View attachment 5633009
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Click to collapse
Ahhhh, you might want to edit that info you posted... it's very unwise to display your imei info as there are those that are unscrupulous and may try to flash that to a device that has been blacklisted. You'd find out it happened when you go to use your phone and it won't work anymore.
I've been trying to figure out a straightforward and direct answer to this question for MONTHS, and it seems there are 12 zillion sites offering all sorts of bs, but I can't find a real and not-super-scammy looking answer. As of June 9th, 2022, has an exploit or method been found to unlock bootloaders on US based snapdragon variants of recent samsung devices? In particular, I would like to know about the SMG991u (samsung galaxy s21) and the SMT227u (galaxy tab A7 lite). If it matters: the device is no longer connected to a cell network