Hello,
This morning my Moto G8 Power spontaneously started booting into Fastboot Mode, with out any user input. So, as precaution i decided to wipe the userdata & cache, just incase there was a fault with the phone, so i could send it back if need be.
Since the whole issue with Fastboot, it's been refusing to boot into phone itself. Just on a loop. So , i've looked for the correct firmware, but i have had no luck so far. I keep gettting the same error "Preflash Validation Failed" which to my understanding is the phone being unable to accept the firmware as the firmware is lower, & so match that of the actual firmware on the phone.
I havn't wiped any of the actual partitions, only the userdata for obvious reasons, so im not as to why it's failing to boot. I don't have a nandroid backup either.
. Any help with solving this issue would be greatly appreciated.
Kind Regards
gliitch
gliitch said:
Hello,
This morning my Moto G8 Power spontaneously started booting into Fastboot Mode, with out any user input. So, as precaution i decided to wipe the userdata & cache, just incase there was a fault with the phone, so i could send it back if need be.
Since the whole issue with Fastboot, it's been refusing to boot into phone itself. Just on a loop. So , i've looked for the correct firmware, but i have had no luck so far. I keep gettting the same error "Preflash Validation Failed" which to my understanding is the phone being unable to accept the firmware as the firmware is lower, & so match that of the actual firmware on the phone.
I havn't wiped any of the actual partitions, only the userdata for obvious reasons, so im not as to why it's failing to boot. I don't have a nandroid backup either.
. Any help with solving this issue would be greatly appreciated.
Kind Regards
gliitch
Click to expand...
Click to collapse
What does getvar all say
Code:
fastboot getvar all
https://mirrors.lolinet.com/firmware/moto/sofiar/official/
Sent from my Moto E (4) using Tapatalk
I ended up sending the phone back in the end, as the power buttons & volume buttons would only respond very infrequently. So i don't think reflashing the Moto G Power would of ended up doing anything. It's a shame. as it's an awesome phone. waiting on a replacement.
Thanks for the help and the link to the firmware. I'll be sure to make a Nandroid backup this time, or at least try to .
Related
Hello,
i have a strange problem with my FireHDX 7.
Tablet will load the boot image then after a few seconds reboots.
It happened on CM 13.1 (i have unlocked bootloader).
I tried everything put on Stock Recovery. Factory Reset. Put on CM 12.1,
put on Stock Amzazon.
No matter what after a few seconds tablet always reboots again.
In TWRP i can see /data having errors. That i can fix with format data.
Once i flash ROM again same loop happens again.
What can that be, faulty emmc? Is there any chance of fixing it?
Unfort. it happened 6 days after the 1 year amazon garantee ran out...
Thanks for any help
andPS2 said:
Hello,
i have a strange problem with my FireHDX 7.
Tablet will load the boot image then after a few seconds reboots.
It happened on CM 13.1 (i have unlocked bootloader).
I tried everything put on Stock Recovery. Factory Reset. Put on CM 12.1,
put on Stock Amzazon.
No matter what after a few seconds tablet always reboots again.
In TWRP i can see /data having errors. That i can fix with format data.
Once i flash ROM again same loop happens again.
What can that be, faulty emmc? Is there any chance of fixing it?
Unfort. it happened 6 days after the 1 year amazon garantee ran out...
Thanks for any help
Click to expand...
Click to collapse
No need to double post. Regular HDX contributors will have seen your issue in the development thread. Well...at least those with some knowledge of your hardware. Unfortunately, there's not a lot of commonality with other android devices. Tough to get help elsewhere. Sorry this happened to you.
thanks for the answer
well i guess i have a device that could be used for some research now
i turned it off and can charge it
anything can be tried in fastboot mode or TWRP mode or stock recovery mode
anyone wants to try out something?
p.s. i still dont understand how it can work in TWRP mode and fastboot without rebooting
but crashes or reboots when any image is loaded
andPS2 said:
thanks for the answer
well i guess i have a device that could be used for some research now
i turned it off and can charge it
anything can be tried in fastboot mode or TWRP mode or stock recovery mode
anyone wants to try out something?
p.s. i still dont understand how it can work in TWRP mode and fastboot without rebooting
but crashes or reboots when any image is loaded
Click to expand...
Click to collapse
TWRP operates (loads) from the recovery portion. The symptoms suggest damage to another partition. The reboot likely occurs when a write operation fails or attempts to put data in a protected area. With a second (working/unlocked) device you might be able to compare storage layouts, determine differences and take corrective action...assuming it is not a HW issue. I realize that's unlikely to happen. Not even sure what to look for and the commands needed to reveal low level storage/partition details.
There is no low-level formatting available for HDX.
Since you have an error with /data there is a good reason to check this partition.
Load into TWRP recovery, attach the tablet to a PC with ADB and driver installed, unmount the data using the interface, launch the adb shell,
then try e2fsck -fpv /dev/block/platform/msm_sdcc.1/by-name/userdata
However I'm not sure that any issues with /data can cause the reboots.
Check the system partition too.
On my device Wi-Fi can't be turned on, this can be NAND issues.
thanks for the help
i can try on monday since my half brick fire hdx is at work
merry x-mas !
p.s.
checking the filesystem for userdata and system indeed showed no errors
still have the reboot problem
guess it is a nand problem then...
So I bought a Moto E XT1526 from FreedomPop for my parents. Been working great for over a month. Then not sure what happened, dad calls me and said it is not working anymore. The phone is stuck in AP Fastboot mode. Tried recovery and Factory reset but it just reboots back in to AP Fastboot mode.
Tried unlocking and get the error, ' Check ;Allow OEM Unlock' in Developer Options. Well....cant cuz phone doesn't boot up.
Tried reflashing to stock and get error, Failed (Remote failure).
Is it a brick now? Not sure how it got to this state as my parents are not techy at all and does not mess with settings. Thx for reading.
emanon1982 said:
So I bought a Moto E XT1526 from FreedomPop for my parents. Been working great for over a month. Then not sure what happened, dad calls me and said it is not working anymore. The phone is stuck in AP Fastboot mode. Tried recovery and Factory reset but it just reboots back in to AP Fastboot mode.
Tried unlocking and get the error, ' Check ;Allow OEM Unlock' in Developer Options. Well....cant cuz phone doesn't boot up.
Tried reflashing to stock and get error, Failed (Remote failure).
Is it a brick now? Not sure how it got to this state as my parents are not techy at all and does not mess with settings. Thx for reading.
Click to expand...
Click to collapse
If the device is being recognized by adb flashing stock firmware is probably your only chance of repairing it. It might not work if android debugging isn't turned on in developer settings. Try flashing only the recovery and system. I'm not sure what else to tell you.
Not sure, but probably an OTA killed it if the phone was running an older version and was being updated.
Try downloading the 'latest' stock Rom and try updating it again. You will have to do a little research on this, there is a step-wise flashing method, with erasing the partitions, try searching threads which specifically talk about unbricking, that should help.
Hi hello
So here’s a head scratcher I hope someone can help me with that won’t involve replacing my main board.
Got myself the p20 lite (ANE-LX1 C432) - Single Sim.
I unlocked the bootloader with Huawei just before they stopped handing out the codes. All was good and happy with the world.
Rooted with Magisk and Was busy messing around With Termux, Linux deploy, Mobile Terminal and some pretty basic stuff. I’ve been out of the android scene for a while so was getting reacquainted with the scene.
Anyway. I was messing around in the terminal in a root shell just fixing basic permissions after messing up my termux environment as root. Phone randomly rebooted (I must’ve messed with the wrong folder -no idea which) came back on and my IMEI and baseband were gone.
No worries, I thought. Happened tonnes of times with my previous Devices (looking at you Samsung) just a quick restore or flash and all will be happy again.
Yeah, not quite.
Note that up until this point I hadn’t touched the system partition (probably besides the mobile terminal mishap -no idea)
So over the last week or so I have tried everything. Restore from Twrp backup. Flashed stock through fastboot, through erecovery. Those flashed ok but didn’t fix it.
Putting numerous different update.app FULL & OTA updates in dload folder on SD and internal all failed. Only used my builds version of course and only ones firmware finder deemed compatible/available
Then I got desperate (read: stupid) Decided to take the unpacked firmware files and flash whichever ones twrp would let me. First tried just the modem files. Didn’t help. Then just went through the list and flashed all I could.
I think the kicker came in when I installed the Trustfirmware.img because once I did that I rebooted and now I was stuck in an endless boot loop. No way to get into recovery. Not with their ton combo nor adb/fastboot.
I still had access to fastboot at this point at least and started doing every single thing suggested all over the net just trying to get back to stock.
Tried the unbrick option on The Huawei Multi-Tool. Flashed ok. Phone still wouldn’t boot. Did it a few times with 3 approved versions. Nothing. Only access to fastboot otherwise I was in a boot loop with error mode error no 15 and the verification failure (Attached below)
Last thing I tried after reading online was to relock my boot loader and flash stock. So I locked it with Huawei Multi-Tool. Reboot......
Now I don’t even have access to fastboot. My PC’s (windows and Linux) don’t even acknowledge it and holding volume down in all the weird and wonderful ways and times does nothing. All I get is startup Huawei Logo, Error Mode as per pic Below and then reboot. That’s it.
I’m assuming it’s trying to do a factory reset after relocking the bootloader (if it even locked properly, can’t check) but it can’t get into recovery/erecovery. I dunno ?
That’s my essay of where I’m at. Warranty is already void so not an option and I don’t want to buy a new mainboard (may as well buy a new phone).
So here I am. Is this my life now or does anyone have any magic tricks to possibly suggest?
Pyrolectic13 said:
Hi hello
So here’s a head scratcher I hope someone can help me with that won’t involve replacing my main board.
Got myself the p20 lite (ANE-LX1 C432) - Single Sim.
I unlocked the bootloader with Huawei just before they stopped handing out the codes. All was good and happy with the world.
Rooted with Magisk and Was busy messing around With Termux, Linux deploy, Mobile Terminal and some pretty basic stuff. I’ve been out of the android scene for a while so was getting reacquainted with the scene.
Anyway. I was messing around in the terminal in a root shell just fixing basic permissions after messing up my termux environment as root. Phone randomly rebooted (I must’ve messed with the wrong folder -no idea which) came back on and my IMEI and baseband were gone.
No worries, I thought. Happened tonnes of times with my previous Devices (looking at you Samsung) just a quick restore or flash and all will be happy again.
Yeah, not quite.
Note that up until this point I hadn’t touched the system partition (probably besides the mobile terminal mishap -no idea)
So over the last week or so I have tried everything. Restore from Twrp backup. Flashed stock through fastboot, through erecovery. Those flashed ok but didn’t fix it.
Putting numerous different update.app FULL & OTA updates in dload folder on SD and internal all failed. Only used my builds version of course and only ones firmware finder deemed compatible/available
Then I got desperate (read: stupid) Decided to take the unpacked firmware files and flash whichever ones twrp would let me. First tried just the modem files. Didn’t help. Then just went through the list and flashed all I could.
I think the kicker came in when I installed the Trustfirmware.img because once I did that I rebooted and now I was stuck in an endless boot loop. No way to get into recovery. Not with their ton combo nor adb/fastboot.
I still had access to fastboot at this point at least and started doing every single thing suggested all over the net just trying to get back to stock.
Tried the unbrick option on The Huawei Multi-Tool. Flashed ok. Phone still wouldn’t boot. Did it a few times with 3 approved versions. Nothing. Only access to fastboot otherwise I was in a boot loop with error mode error no 15 and the verification failure (Attached below)
Last thing I tried after reading online was to relock my boot loader and flash stock. So I locked it with Huawei Multi-Tool. Reboot......
Now I don’t even have access to fastboot. My PC’s (windows and Linux) don’t even acknowledge it and holding volume down in all the weird and wonderful ways and times does nothing. All I get is startup Huawei Logo, Error Mode as per pic Below and then reboot. That’s it.
I’m assuming it’s trying to do a factory reset after relocking the bootloader (if it even locked properly, can’t check) but it can’t get into recovery/erecovery. I dunno ?
That’s my essay of where I’m at. Warranty is already void so not an option and I don’t want to buy a new mainboard (may as well buy a new phone).
So here I am. Is this my life now or does anyone have any magic tricks to possibly suggest?
Click to expand...
Click to collapse
Check the second post in this thread:
https://forum.xda-developers.com/honor-7x/help/help-stuck-error-mode-screen-t3735067
kilroystyx said:
Check the second post in this thread:
https://forum.xda-developers.com/honor-7x/help/help-stuck-error-mode-screen-t3735067
Click to expand...
Click to collapse
Thanks for this.
The battery discharged fully about two days ago.
I haven’t tried plugging it in and out as/if it turns on immediately (though even though it shows dead without charger it still comes on immediately).
I’m gonna get a weaker lower amp charger and see if that maybe helps. Fml ?
***UPDATE***
Been at it for hours. Battery is completely flat. But h second I plug it in the the Black Huawei logo comes up ten a few seconds later it’s on the same error screen for a little longer then boot loops like that constantly.
The error isn’t the same as the post in that link though. And I am FRP unlocked.
Eh.
Pyrolectic13 said:
Thanks for this.
The battery discharged fully about two days ago.
I haven’t tried plugging it in and out as/if it turns on immediately (though even though it shows dead without charger it still comes on immediately).
I’m gonna get a weaker lower amp charger and see if that maybe helps. Fml ?
***UPDATE***
Been at it for hours. Battery is completely flat. But h second I plug it in the the Black Huawei logo comes up ten a few seconds later it’s on the same error screen for a little longer then boot loops like that constantly.
The error isn’t the same as the post in that link though. And I am FRP unlocked.
Eh.
Click to expand...
Click to collapse
I guess your previous error was related to ramdisk...
Now what is your current situation?
-What error is showed in the Error mode?
-Can you reach FASTBOOT&RESCUE MODE menu?
-What is your current recovery?
kilroystyx said:
I guess your previous error was related to ramdisk...
Now what is your current situation?
-What error is showed in the Error mode?
-Can you reach FASTBOOT&RESCUE MODE menu?
-What is your current recovery?
Click to expand...
Click to collapse
As it stands I cannot enter fastboot or recovery mode. Update from SD also doesn’t do anything. Battery is completely discharged. And if I leave it on the charger it doesn’t charge, only boot loops.
So with all that the ONLY thing this phone does now is:
- Starts up Showing Huawei logo
- Error Mode Screen with Func No: 15 (bl31 image) & Error No: 1 (security verify failed)
- Reboots
Ths happens whether it’s plugged into the pc’s usb or the charger. Tried all combinations of buttons too.
It has stock recovery as I flashed that back when trying to revert back to stock.
I lost access to fastboot after I locked the bootlaoder again using the Huawei Multi Tool. It’s like it trying to do the factory wipe that it usually would after locking/unlocking the bootloader but is unable to due to the error mode screen.
Sent from my iPhone using Tapatalk
Pyrolectic13 said:
As it stands I cannot enter fastboot or recovery mode. Update from SD also doesn’t do anything. Battery is completely discharged. And if I leave it on the charger it doesn’t charge, only boot loops.
So with all that the ONLY thing this phone does now is:
- Starts up Showing Huawei logo
- Error Mode Screen with Func No: 15 (bl31 image) & Error No: 1 (security verify failed)
- Reboots
Ths happens whether it’s plugged into the pc’s usb or the charger. Tried all combinations of buttons too.
It has stock recovery as I flashed that back when trying to revert back to stock.
I lost access to fastboot after I locked the bootlaoder again using the Huawei Multi Tool. It’s like it trying to do the factory wipe that it usually would after locking/unlocking the bootloader but is unable to due to the error mode screen.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
I see, it is really bad
My last hope is to be able to do a forced Firmware upgrade. Press power button and VOL + and VOL- simultaneously. Do you see the same as the attached image?
kilroystyx said:
I see, it is really bad
My last hope is to be able to do a forced Firmware upgrade. Press power button and VOL + and VOL- simultaneously. Do you see the same as the attached image?
Click to expand...
Click to collapse
Ah man, I wish it would even do that. It makes no attempt to even pretend to see the sd card update. If I hold all the buttons in it still only comes up with the error mode and reboots.
I popped it open and connected a charger up battery to see if that would help but it doesn’t.
Do you maybe know the pin layout on the inside or know where I could get schematics? Been looking everywhere.
I’m almost done building my own Jtag box and am hoping to bring it back to life by writing straight to the damn thing.
Sent from my iPhone using Tapatalk
Pyrolectic13 said:
Ah man, I wish it would even do that. It makes no attempt to even pretend to see the sd card update. If I hold all the buttons in it still only comes up with the error mode and reboots.
I popped it open and connected a charger up battery to see if that would help but it doesn’t.
Do you maybe know the pin layout on the inside or know where I could get schematics? Been looking everywhere.
I’m almost done building my own Jtag box and am hoping to bring it back to life by writing straight to the damn thing.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
That is sad!!!
With JTAG and schematics stuff I cannot help you.
What I found recently and it was new for me (I didn't tested yet) is a possibility to install firmware via "dload" folder, but to start installation the stock recovery have to be full functional.
If I found something interesting for you I'll post here.
kilroystyx said:
That is sad!!!
With JTAG and schematics stuff I cannot help you.
What I found recently and it was new for me (I didn't tested yet) is a possibility to install firmware via "dload" folder, but to start installation the stock recovery have to be full functional.
If I found something interesting for you I'll post here.
Click to expand...
Click to collapse
To my knowledge the recovery is installed. Well erecovery. It was working up until I locked the bootloader again and it went into a boot loop instead of doing the factory reset.
Is there any other way to force sd update other than with the dload folder?
Thanks for tying to help, I appreciate it.
Pyrolectic13 said:
To my knowledge the recovery is installed. Well erecovery. It was working up until I locked the bootloader again and it went into a boot loop instead of doing the factory reset.
Is there any other way to force sd update other than with the dload folder?
Thanks for tying to help, I appreciate it.
Click to expand...
Click to collapse
You can check the official documentation about that.
Please let us know how you solved this problem.
kumarsid7 said:
Please let us know how you solved this problem.
Click to expand...
Click to collapse
Still unsolved as of yet.
I’ve finished building my own version of the Riff/Octoplus box as well as a makeshift Jtag. I’m still trying to find and piece together some firmware files and other board software I think I need.
Also, if anyone has any idea where the test point is on this board I’d really appreciate you pointing it out. I cannot find the schematics or any solid documentation anywhere.
I will attach the pics I have of both sides of the board as soon as I get home.
Sent from my iPhone using Tapatalk
in first picture youle see many circles golden 2 smallest is testpoint good luck
Pyrolectic13 said:
Still unsolved as of yet.
I’ve finished building my own version of the Riff/Octoplus box as well as a makeshift Jtag. I’m still trying to find and piece together some firmware files and other board software I think I need.
Also, if anyone has any idea where the test point is on this board I’d really appreciate you pointing it out. I cannot find the schematics or any solid documentation anywhere.
I will attach the pics I have of both sides of the board as soon as I get home.
View attachment 4579956
View attachment 4579957
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
in first picture youle see many circles golden 2 smallest is testpoint good luck
well, try to restore your device using dload method. It needs you to copy the UPDATE.APP in dload folder of an external sd card(formated in NTFS format) and then just press both vol up+down along with power button for a few seconds. It will auto launch huawei e-recovery and will try to flash the UPDATE.APP you stored in ext sd card. This should definitely work.
Dload method doesn't need you to unlock your device or bootloader.
Maybe?
I know it’s a long shot but I still have this phone. If anyone maybe knows if there’s been a way to fix this as of yet please let me know. ?
Lol. Still got this damn thing. Been searching around and seen a few people reporting similar errors. Never find out if they ever solve it though.
So. Anyone maybe have any knowledge to share? Anything at all.
I don't know if you still have your device, but I had the exact same issue with a P10 (VTR-L09)
I was able to fix fastboot using https://github.com/mashed-potatoes/PotatoNV
That tool was designed to unlock the bootloader, but I noticed that It actually flashes a slightly modified version of fastboot.
PotatoNV can also unlock P20 lite bootloader, so you should give it a shot.
Good luck!
If it works, you should be able to flash stock recovery image and then restore the system using the dload folder.
you can Repair it with Software Testpoint and Full Bootloader Unlock ,and then flash a Board Software via Software Testpoint, that helps 100%!!!
use this Firmware Download ANE-LX1
use the Software with logins and you have all what you need.
you must start the Software Testpoint so!!
VIDEO : how to start Software Testpoint P20 Lite
than in Software Testpoint you flash the included Board Software with DC-Phoenix and after that use the included dload update via sdcard and eRecovery mode and your Phone is running!!!
I would unlock the bootloader via Software Testpoint with DC-Phoenix, then the FBLock is unlocked and you can flash as you wish!!!! And the great thing about it is that you don't need an UnlockKey either, you can then read this with HCU client software, the only thing that's stupid is that you need a time-based license for the two programs, which you have to buy.
HCU client download
https://hcu-client.com
DC Phoenix download
https://forum.dc-unlocker.com/forum/modems-and-phones/huawei/155916-dc-phoenix
Since I accidentally bought a 3-day license twice and my P20 Lite is now completely rooted on Lineage 19.1, I can give away 2 access data, which are still valid for 2 days.
you can edit your smartphone with it.
username : bl26457
password : kKncnkMj
username : bl26390
password : JDAZqnkN
Then I wish you a lot of fun with it, hope it helps you if someone else is active in this thread.
Hi,
I tried rooting my Nord 2, but managed to screw it up somewhere. I followed the usual stepw to do this, but the first time I was unable to use my wifi/bluetooth/gps. My phone was/is at the A1 EU. Version. I tried fixing the problem, but made things worse. Now I am stuck in the red dot boot logo and after a while I get to the TWRP screen. From there I can still fastboot. I tried restoring my phone from there, but without any luck. Can someone help me fix my phone ? At this point I don't even care that much anymore about rooting my phone, i just want to be able to use it again.
Thanks in advance!
Hi,
I had the same issue, but without switch to TWRP screen, just stays on red dot boot logo and that was all. The solution for me was format of the storage with stock recovery. In your case you may follow the instructions below:
1. Boot in bootloader (volume down + power on)2. Flash the stock recovery3. Reboot to recovery4. Select English, after that Wipe and Format storage (the phone will reboot automatically after success)
Best regards and good luck!
Onacceptable said:
Hi,
I tried rooting my Nord 2, but managed to screw it up somewhere. I followed the usual stepw to do this, but the first time I was unable to use my wifi/bluetooth/gps. My phone was/is at the A1 EU. Version. I tried fixing the problem, but made things worse. Now I am stuck in the red dot boot logo and after a while I get to the TWRP screen. From there I can still fastboot. I tried restoring my phone from there, but without any luck. Can someone help me fix my phone ? At this point I don't even care that much anymore about rooting my phone, i just want to be able to use it again.
Thanks in advance!
Click to expand...
Click to collapse
Did you try to format data via twrp and then restart?
I've been getting help on this over at Hovatek, but it's extremely slow going; I first posted there on December 11 and it's still not resolved. This phone is a former Lifeline phone, and I've been trying to get it rooted so that I can use the Tello SIM I obtained. The problem the phone was having is that it refused to do any updates, so Tello's troubleshooting as to why it wasn't detecting the SIM was completely halted.
I did finally get to the point of rooting it. The major problem I have now is that it will only boot to fastboot mode. I can get it into recovery mode, but I get the dead android with "no connection" under it, and I've tried everything the internet has suggested to get past that, and it won't. Additionally, any fastboot command (apart from "fastboot devices") I try in ADB returns "FAILED (remote: 'unknown command'). I don't know how to get it into EDL mode from fastboot. I've tried every button combo possible, and the only one that does anything different is power + volume up, which changes it to a bright white screen. At this point I just want to do a hard reset so I can take another go at the rooting process, but the phone doesn't seem to want to allow me to. I would appreciate any help with this; I don't have a working phone at the moment because of these issues.
https://forum.xda-developers.com/t/trouble-rooting-umx-u683cl.4518007
Yes, that's my original post from back in November. That post is no longer my problem, though I will set your response there aside for when I hopefully get the phone to do anything besides fastboot.
it's clearly same topic, you must not open new thread. add your second post to previous one so mods can delete this thread.
It's clearly not. It's the same phone, but a different problem. The old post was seeking help with rooting it (and got no action, you may note), this one is about getting it out of fastboot mode so I can reset the damn thing and try again.
you bricked that device as a result of trouble with rooting. all info belongs to the previous thread, so others can read the history that caused this situation. I am not arguing any further here. answer in other thread and close this one.
somnomania said:
I've been getting help on this over at Hovatek, but it's extremely slow going; I first posted there on December 11 and it's still not resolved. This phone is a former Lifeline phone, and I've been trying to get it rooted so that I can use the Tello SIM I obtained. The problem the phone was having is that it refused to do any updates, so Tello's troubleshooting as to why it wasn't detecting the SIM was completely halted.
I did finally get to the point of rooting it. The major problem I have now is that it will only boot to fastboot mode. I can get it into recovery mode, but I get the dead android with "no connection" under it, and I've tried everything the internet has suggested to get past that, and it won't. Additionally, any fastboot command (apart from "fastboot devices") I try in ADB returns "FAILED (remote: 'unknown command'). I don't know how to get it into EDL mode from fastboot. I've tried every button combo possible, and the only one that does anything different is power + volume up, which changes it to a bright white screen. At this point I just want to do a hard reset so I can take another go at the rooting process, but the phone doesn't seem to want to allow me to. I would appreciate any help with this; I don't have a working phone at the moment because of these issues.
Click to expand...
Click to collapse
Here is the full firmware for the U683CL. Be sure to wipe the userdata and cache because I dumped the firmware from the same phone from a guy for $5 and it still has the guy's data and it contains pretty weird things...
BE SURE TO USE EDL CLIENT!
EDL CLIENT IS ONLY SUPPORTED ON LINUX SO MAKE A VIRTUAL MACHINE!
EDL CLIENT DOES NOT REQUIRE ANY RAWPROGRAM0.XML OR PATCH0.XML FILE!!
Link (I will make sure this link is never taken down and if it is, I'm reuploading the link no matter what): https://www.mediafire.com/file/js8ynkg8uum9ql0/u683cl_february_patch.zip/file