Upgrade path from B123 - Huawei Ascend P7

I'm running a P7 with the firmware it shipped with and I'd really like to get it up to date, but every package I've tried so far has failed during package verification. There seems to be very little info on how to update your phone from such an old build. Can anyone please help because I'm at my wit's end here. I have a limited date cap so can't just keep downloading updates in the hopes that one of them will work.
I would be greatly indebted to anyone who could help me. This issue is making me want to cry.

Do you have a phone with a provider/network lock? Which roms did you try so far? You may give B133 a shot, if that doesn't work you'd have to go the way over a custom rom and then getting back to the stock one. I can describe the process more detailed in case it's necessary.

Thanks for the response!
I think the issue is that it is a network locked ROM. I got the phone from a provider called Vodacom and get their splash screen and everything. I went to speak to them and they told me I'm not supposed to be able to update my firmware because that requires rooting the phone, which voids my warranty. Sales people being sales people, I'm not sure how truthful this is. I can't imagine a provider refusing to let you update your phone.
So far I've tried B133, B609, B617 and B853, none of which works, sadly. Someone suggested I unlock the bootloader and I got the unlock code through the Huawei site, but when I try to boot using the three-button method it tells me that no update.app file was found, so I'm not sure how to get to where I enter the unlock code.

Hm, you might search around a bit and find an easier way, but if not, unlock the bootloader, flash twrp and any emui 2.3 based custom rom. Then flash the stock recovery and make a forced update (3 buttons) with B133.
To access the bootloader you have to press volume- and power until a white screen with some text appears.
Anyway, to update would definitely be worth it.

Yeah, I did precisely that last night and ended up soft-bricking my phone. It wouldn't even work when I flashed the original firmware. It's currently in at a repair shop and I hope they can fix it. Lesson learned though.
Thanks for the help anyway.

It's not that easy to hardbrick the P7, it's very likely that he will be able to fix it! With some time for trying, you probably would have been able to do it by yourself, too.
Your very welcome

Yeah, the thing is I was up all night trying to fix it. Flashing it back the original software should theoretically have done it, so I have no idea why it didn't.

Related

Factory reset - Problem.

Greetings everyone!
Few weeks ago, I gave my device to a friend of mine to manually update it. Something went wrong so he decided not to go any further. Yday i tried to "Factory reset", after reset some error pop'd in the left upper corner of the phone.It says:
[LGE_SECURITY] ERROR: boot image signature
Critical failure: Unable to start kernel.
Unrecoverable bootloader error (0x00000002).
Anyone had any similiar or even the same problem as i am facing right now? Thanks in advance.
best regards, Milan
Guy didn't know what he was doing apparently. Your handset is still locked and he apparently tried installing a 3rd party ROM, lemme guess, you wanted a newer version of Android than 4.1., which is a reasonable enough thing. Problem is that out of the box you can't do that because it only boots images signed by LG and they abandoned development after releasing 4.1 and a couple of minor point releases. You aren't totally screwed but if you were having somebody else do it for you, you might need to get some help. You can find the details elsewhere here, or more likely point a more skilled friend at it, but here it is in a nutshell.
You need to get LG's official updating software (from the LG website) and you need to fiddle with it a bit until you get it to do a rescue because it expects to have already paired up with the phone while it was still working. If you already had it installed, great because it will make it easier. Anyway, you will probably have to manually pick your model and input the IMEI since it won't already know those things and it will go out and fetch the most recent image. You will push VOL Down and insert the USB cable from a powered down state, it will then do the rest. Good chance you will even retain your data unless that 'factory reset' you mention actually succeeded.
Of course that will only get you back to stock 4.1. Read around for the official way and several un-official ways to unlock your boot loader. Once that is done you can install a better recovery and then a newer version of Android. But the first step is to restore the stock software since you have to have a running phone to be able to unlock it.
And no, nobody has ever been able to explain WHY they lock them, but every single manufacturer seems determined to do it, chipmakers put a lot of work and ad copy into how extensive and unbreakable the locks on their newest chip is, etc. And then they either bow to customer demand and add an unlock feature or we here at xda do it for them... as a courtesy of course. Truly we do live in the asylum. Wonko the Sane was onto something.

unlocked, twrp'd & rooted... what now?

I'm not really sure what I'm doing, I changed my country code from "demo" to eu and I'm on EVA-L09C432B182. There's so many different versions and I don't know which is good or even compatible. What would be the next thing you guys would do in order to get the most from my phone?
Edit - I just jumped in at the deep end and everything wen't well, I'm now on Nougat with emui 5.0, if you're in the same boat as I was, I used the Huawei Update in the second post of this thread: https://forum.xda-developers.com/p9/help/p9-7-0-nougat-update-eva-lo9-b182-t3539754"]https://forum.xda-developers.com/p9/help/p9-7-0-nougat-update-eva-lo9-b182-t3539754
worked a bloomin treat for me!
C900 country demo ?
Thorpy4p said:
I'm not really sure what I'm doing, I changed my country code from "demo" to eu and I'm on EVA-L09C432B182. There's so many different versions and I don't know which is good or even compatible. What would be the next thing you guys would do in order to get the most from my phone?
Edit - I just jumped in at the deep end and everything wen't well, I'm now on Nougat with emui 5.0, if you're in the same boat as I was, I used the Huawei Update in the second post of this thread: https://forum.xda-developers.com/p9/help/p9-7-0-nougat-update-eva-lo9-b182-t3539754"]https://forum.xda-developers.com/p9/help/p9-7-0-nougat-update-eva-lo9-b182-t3539754
worked a bloomin treat for me!
Click to expand...
Click to collapse
I have an eva-L09 with C900B190 and have country "demo" ??
I read a lot of posts how to get from the C900B190 to a Rom that has ota updates.
Before I start and because I am a bit of a noob I want to be absolutely sure I get all steps correct...please help me out and confirm/correct this
1) set develloper usb debugging
2) make sure phone connects to pc
3) install latest twrp
4) unlock boot loader with tool (https://forum.xda-developers.com/p9/development/huawei-p9-eva-l09-eva-l19-eva-l29-tool-t3591358)
5) make note of unlock code
6) use twrp to flash B136 (still have to find zip)
do I get ota to android 7 or I have to flash latest Rom meself (what is the best version for eva-L09?)
After that can I lock the boot loader and stay on android 7 or will the phone reset with locking and revert to android 6 again?
Thanks for helping
Contacted huawei, they were very helpful I will probably go to the service center to hopefully reset my phone to receive updates.
I also asked for an unlock code in case I need a plan B.
djaccob said:
Contacted huawei, they were very helpful I will probably go to the service center to hopefully reset my phone to receive updates.
I also asked for an unlock code in case I need a plan B.
Click to expand...
Click to collapse
Seems I have no warranty (I got the phone from a friend and have no papers or anything) and have to pay for service centre. So I will try unlocking myself...
If anyone can help me out with all the steps in the right order I would be very grateful.

VIE-L09 seems to be totally screwed!

Hey,
So i used the SRK tool to try and root my VIE-L09C40 (P9 Plus)
Something seemed to happended during the rooting procedure and when i entered e-recovery it said it had to Download a new version, but couldnt connect to internet via wifi.
Any ways it seemed to work after a while but now i have no keyboard at all, so i cant literally start my phone.
it starts, boots the EMUI 5.0 logo and goes through the information a terms, i click the ok button and thats fine.
Next it tells me to sign in to my wifi, i select my wifi and when i go to type the password all i have is google voice as a keyboard, ive searched and searched but cannot find a way around it, also the frp has tripped on phone so i cannot log in to my google account without a keyboard.
How can i get around this?
do i have to flash parts of firmware?
any help would be great, i sent it away to hauwei and they say warranty void due to software!, can only assume something wrong was flashed?
Waiting for phone to be returned now, please help
I had the exact same issue last night as well. No keyboard and only an option to enter details with voice.
Ended up with an essentially bricked phone. Couldn't find any info on the problem online, so I have to improvise.
I'm starting from scratch after formatting etc. using stock oeminfo, recovery and rolling back to Marshmallow. (fingers crossed ADB will let me, because it was giving me errors before)
Will let you know if I'm successful and the steps I took.
=====================
tolerant said:
Hey,
So i used the SRK tool to try and root my VIE-L09C40 (P9 Plus)
Something seemed to happended during the rooting procedure and when i entered e-recovery it said it had to Download a new version, but couldnt connect to internet via wifi.
Any ways it seemed to work after a while but now i have no keyboard at all, so i cant literally start my phone.
it starts, boots the EMUI 5.0 logo and goes through the information a terms, i click the ok button and thats fine.
Next it tells me to sign in to my wifi, i select my wifi and when i go to type the password all i have is google voice as a keyboard, ive searched and searched but cannot find a way around it, also the frp has tripped on phone so i cannot log in to my google account without a keyboard.
How can i get around this?
do i have to flash parts of firmware?
any help would be great, i sent it away to hauwei and they say warranty void due to software!, can only assume something wrong was flashed?
Waiting for phone to be returned now, please help
Click to expand...
Click to collapse
dmccort said:
I had the exact same issue last night as well. No keyboard and only an option to enter details with voice.
Ended up with an essentially bricked phone. Couldn't find any info on the problem online, so I have to improvise.
I'm starting from scratch after formatting etc. using stock oeminfo, recovery and rolling back to Marshmallow. (fingers crossed ADB will let me, because it was giving me errors before)
Will let you know if I'm successful and the steps I took.
=====================
Click to expand...
Click to collapse
Good luck, i did read that it might be possible to install the base firmware back to it and then update again.
Im sure we are not the only people this has happened to and if you succesfully do this, maybe consider making a full step by step guide so to help others.
Fingers crossed
:good:
Will do my best.. So far it's been a major. I've managed to flash a working stock ROM and boot up. But there are a few things to smooth out. Such as, I have no IMEI number now and the build is C900, also the bootloader is modified.
To get it to boot I had to use DC- Phoenix to flash a factory firmware(Chinese) which I had to pay for. Then I flashed a stock vie-l09c432b181 ROM over the top.
To repair the IMEI I'll have to use HCU, which I'll have to pay for as well. But that's ok. If I can get my original IMEI back, I can use the original unlock code I got earlier this year, otherwise I'll have to get a new one based on a new IMEI.
I can repair the bootloader and region code using twrp etc. so that's not a problem.
I'm actually using the phone to write his reply, so I can at least use it.
Once I have it all 100% working I'll try to put together a full step by step.
Cheers.
Well, I have a working phone. But, it'snot stable. Having trouble with mobile connection, sms, mms, 4g etc not staying connected. So wont be doing any write-ups just yet.
Not until it's stable.
I'm wanting to return it to complete stock now. And that requires trying to find an oeminfo file for C706 (New Zealand).
Will add more as I get there. Sorry.
I had the same problems. All I did is updated the phone with the firmware you want via Twrp . Be warned that it will replace the recovery back to stock. Also clear the cache and etc.
I had a similar issue with SRK tool, bootlooping, won't flash new firmwares, lost all the stock apps and diagnostic tools.
I'm now stuck on a TEST-KEYS build with no NFC or Bluetooth.
My solution was to throw the piece of junk in a drawer, forget about it and I went and bought a Pixel XL instead - a phone that is properly supported and gets updates quickly.
After much messing and a headache I finally got to c432b370
And everything back to normal
tolerant said:
After much messing and a headache I finally got to c432b370
And everything back to normal
Click to expand...
Click to collapse
How did you succeed?
I am stuck on TEST-KEYS but I am not able to flash other roms on it. When I go to recovery, the update process stops after a while
Sent from my VIE-L09 using Tapatalk

Stuck on honor logo

Ive had this problem for ages and tried everything i can think of. hopefully by now someone has experienced the same problem and solved it.
*My phone is stuck on honor boot logo
*i can access e-recovery
*i can access stock recovery
*i can access fastboot and device is recognised on my laptop
* i can wipe cache and factory reset successully and have done many times
*i can and have used the dload (3 button method) to flash stock rom successfully
Now the problem is that although i have flashed the earliest stock rom NEM-L51C432B102 it fails saying incorrect package!!!i think this is because my phone came with B103 or B104 and you can only flash from what your phone originally had and up.
I have flashed NEM-L51C432b120 and also NEM-L51C432b130 and although it says successful it reboots and remains stuck on honor boot logo!
I have entered fastboot and i can issue commands but they all fail saying REMOTE COMMAND NOT ALLOWED.
I can't use ADB because it doesn't recognise my device. Obviously ADB and FASTBOOT wont work because i can't access developper options and select enable USB debugging or OEM Unlock because the phone is stuck on honor boot logo.
Also my bootloader must be locked. I have the unlock code but i can't issue the command FASTBOOT OEM UNLOCK XXXXXXXXXXXXXXX because as mentioned before it says FAILED REMOTE COMMAND NOT ALLOWED.
I have even tried flashing rollback packages(there isnt one for NEM-L51)for other models, followed by flashing stock rom for my model device.
When i bought the phone it came with either the B103 or B104 package but after months of searching i can't find on the internet.
Is my phone a lost cause??? is it hard bricked? So i am praying that there is a guru out there who can solve this very strange problem.
Many thanks in advance.
iantechie1979 said:
Ive had this problem for ages and tried everything i can think of. hopefully by now someone has experienced the same problem and solved it.
*My phone is stuck on honor boot logo
*i can access e-recovery
*i can access stock recovery
*i can access fastboot and device is recognised on my laptop
* i can wipe cache and factory reset successully and have done many times
*i can and have used the dload (3 button method) to flash stock rom successfully
Now the problem is that although i have flashed the earliest stock rom NEM-L51C432B102 it fails saying incorrect package!!!i think this is because my phone came with B103 or B104 and you can only flash from what your phone originally had and up.
I have flashed NEM-L51C432b120 and also NEM-L51C432b130 and although it says successful it reboots and remains stuck on honor boot logo!
I have entered fastboot and i can issue commands but they all fail saying REMOTE COMMAND NOT ALLOWED.
I can't use ADB because it doesn't recognise my device. Obviously ADB and FASTBOOT wont work because i can't access developper options and select enable USB debugging or OEM Unlock because the phone is stuck on honor boot logo.
Also my bootloader must be locked. I have the unlock code but i can't issue the command FASTBOOT OEM UNLOCK XXXXXXXXXXXXXXX because as mentioned before it says FAILED REMOTE COMMAND NOT ALLOWED.
I have even tried flashing rollback packages(there isnt one for NEM-L51)for other models, followed by flashing stock rom for my model device.
When i bought the phone it came with either the B103 or B104 package but after months of searching i can't find on the internet.
Is my phone a lost cause??? is it hard bricked? So i am praying that there is a guru out there who can solve this very strange problem.
Many thanks in advance.
Click to expand...
Click to collapse
Oh well. Seriously this is the same issue my frn asked me to help. This is soo serious that we can only unbrick through update.app or else service center. Since u said dload method works but stucks device on bootlogo. U need to visit service center if under Warranty
iantechie1979 said:
When i bought the phone it came with either the B103 or B104 package but after months of searching i can't find on the internet.
Is my phone a lost cause??? is it hard bricked? So i am praying that there is a guru out there who can solve this very strange problem.
Many thanks in advance.
Click to expand...
Click to collapse
Flash these files and it should, most probably, be fine.
use dload method as given here- https://forum.xda-developers.com/showpost.php?p=73954487&postcount=240
as there are many different opinions on this method of using only update.app file but thats not true and it should be all the files.
Main file - http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1165/g104/v71812/f1/full/update.zip
Data file- http://update.hicloud.com:8180/TDS/...1812/f1/full/hw/eu/update_data_full_hw_eu.zip
Flash both the files in order. 1st file will restore your system but then you need to have 2nd file so that apps are installed and all working fine.
After 1st file, it may reboot on its own and stuck on honor logo, reboot to recovery and then do factory reset, it will be fine.
Then let it boot to set up. Dont set your phone. Shutdown and flash the 2nd file.
boot and set up.
Good luck. Please provide feedback once done. In case of further issue, let me know and will dig more into this.
Oh this is hard.
chrisleLP said:
Oh this is hard.
Click to expand...
Click to collapse
What is hard?
shashank1320 said:
What is hard?
Click to expand...
Click to collapse
This problem.
chrisleLP said:
This problem.
Click to expand...
Click to collapse
you cant follow simple instructions? you shouldnt be on this forum if youre not ready to lose data or brick your device.
Thanks for your input so far people. Much appreciated. @shashank1320 I am downloading the files you suggested and will flash them exactly according to your instructions. I will get back to you in a couple of days with the result. Fingers crossed.
gopinaidu77 said:
Oh well. Seriously this is the same issue my frn asked me to help. This is soo serious that we can only unbrick through update.app or else service center. Since u said dload method works but stucks device on bootlogo. U need to visit service center if under Warranty
Click to expand...
Click to collapse
Unfortunately my warranty has expired. The annoying thing is that if i had sent my device off six months ago when this first happened it would still be under warranty but in the UK there is only 1 service center, yes 1, and its hundreds of miles away! So i figured i could solve it myself. You live and learn.
Hey there everyone. I still havent managed to solve the issue with my device and its not through lack of trying. I have re downloaded all of the stock firmwares that you can possibly find on the internet. I also found one ive necer seen before. Its a full service repair b355. Fingers crossed, a miracle might happen and it will just boot up like when i first bought it. to begin with tho, i'm going to start with b102 and work through them b120, b130 ,b130rollback ,b350(beta), b350, b355 and then the b355 full service repair! I also got a couple of rollback packages(around 80mb) if all else fails.
I know, i'm nuts!! Finally before i admit defeat i'm going to part with £15 to buy credits for the dc-unlocker and dcPhoenx programs. From what ive read it has a good chance of solving it. I've taken soooo long before considering this option because i think its wrong that someone(s) is making loads of money from this. Why havent huawei/honor included a similar program in hi-suite. Anyway ive gone off on a tangent.
One last question though. Strangely enough i only just thought of it recently....
Is it a necessity to have your sim card in the tray as well as the sd-card????? All this time i havent had a sim in the phone as its in a crappy old one so i can still communicate with the world!!!!
Thank you to everyone for taking your time to read this. I hope a solution is possible.
iantechie1979 said:
Hey there everyone. I still havent managed to solve the issue with my device and its not through lack of trying. I have re downloaded all of the stock firmwares that you can possibly find on the internet. I also found one ive necer seen before. Its a full service repair b355. Fingers crossed, a miracle might happen and it will just boot up like when i first bought it. to begin with tho, i'm going to start with b102 and work through them b120, b130 ,b130rollback ,b350(beta), b350, b355 and then the b355 full service repair! I also got a couple of rollback packages(around 80mb) if all else fails.
I know, i'm nuts!! Finally before i admit defeat i'm going to part with £15 to buy credits for the dc-unlocker and dcPhoenx programs. From what ive read it has a good chance of solving it. I've taken soooo long before considering this option because i think its wrong that someone(s) is making loads of money from this. Why havent huawei/honor included a similar program in hi-suite. Anyway ive gone off on a tangent.
One last question though. Strangely enough i only just thought of it recently....
Is it a necessity to have your sim card in the tray as well as the sd-card????? All this time i havent had a sim in the phone as its in a crappy old one so i can still communicate with the world!!!!
Thank you to everyone for taking your time to read this. I hope a solution is possible.
Click to expand...
Click to collapse
No need of sim card in tray while using dload. Just sd card is fine. Let me go through it again and try to help before you go for 15 dollars for dc phoenix
shashank1320 said:
No need of sim card in tray while using dload. Just sd card is fine. Let me go through it again and try to help before you go for 15 dollars for dc phoenix
Click to expand...
Click to collapse
Yeah i didn't think it made any difference but its good to make sure.
i'll be waiting patiently for any golden nuggets of help you can give me.
thanks shashank1320,:fingers-crossed:
iantechie1979 said:
Yeah i didn't think it made any difference but its good to make sure.
i'll be waiting patiently for any golden nuggets of help you can give me.
thanks shashank1320,:fingers-crossed:
Click to expand...
Click to collapse
Did you flash those files i given? If not can try. Else i will have to look for other alternative
yeah i downloaded those files you had mentioned in your post and followed the instructions to the letter.
I've got a suggestion if you have tried all these above.
Can you try the following on ADB and then try to unlock OEM again.
fastboot oem relock YourUnlockCode
I've done the same and it helped, even when bootloader displayed UNLOCKED. Please try it. :good::good:
Click to expand...
Click to collapse
Click to expand...
Click to collapse
@shashank1320 Hi, i have similar problem with my NEM-L21 device... I tried to flash the Elite ROM v5.1 but i didnt succeed so i decided to restore my old rom from backup with TWRP. When i restored it it just didnt load. It was stuck on honor logo for a long time. I tried the dload method many times but nothing worked so far. I even tried unbrick it with HUAWEI Multi-tool but it also didnt worked.
Now i cant acces anything, just fastboot. I cant even turn off the device. Please can you help me somehow?
NameNotFound74 said:
@shashank1320 Hi, i have similar problem with my NEM-L21 device... I tried to flash the Elite ROM v5.1 but i didnt succeed so i decided to restore my old rom from backup with TWRP. When i restored it it just didnt load. It was stuck on honor logo for a long time. I tried the dload method many times but nothing worked so far. I even tried unbrick it with HUAWEI Multi-tool but it also didnt worked.
Now i cant acces anything, just fastboot. I cant even turn off the device. Please can you help me somehow?
Click to expand...
Click to collapse
Try unlocking the bootloader again even if it is unlocked. It will factory reset the device and it should boot fine. Have stuck on this many a time and this was the method i followed.

V40 is it possible to change NT Code without Root?

I have read through many posts here in the forum, where I got some tips that I have tried, but nothing that totally applied to my problem, only parts of it. I have upgraded my phone with every firmware of the Open_EU since January 2020 without any problem using LGUP. Last time I upgraded to Android 10 in August, it was also successful but then check nt-code: 222201: ff started to appear everytime I turned on the phone. It's annoying, but not a big problem since the phone works perfect. However I tried to upgrade to Android 10 v405ebw30c recently, and now LGUP can't make the upgrade, it says can't cross-DL, with a strange message judypn_lao_eea ->judypn_lao_com. Could the NT-code be the cause of this? I also tried to enter the hidden menu, *#546368#*405# and I can see the nt code, but I can't change it. Nothing happens. Will I have to root my phone to make this work? or are there other options?
Some history, this phone doesn't officially exist in Sweden, where I live. However, it's possible to buy it anyway. It was sold as brand new and unlocked. The first week I discovered that I couldn't make the officially update . Then I found out it's originally italian (TIM), and probably someone that unlocked afterwards. But maybe not properly made since it was problem to make upgrades with LG Bridge. And when I succefully managed to make the upgrade with LGUP I decided to keep the phone anyway, because I liked it too much. But since this NT code started to appear after the Android 10 upgrade, I wondered if maybe there's some "leftovers" from TIM italy. So is rooting the only option for me? Except for the upgrade problems it works perfect every day.
suain81 said:
I have read through many posts here in the forum, where I got some tips that I have tried, but nothing that totally applied to my problem, only parts of it. I have upgraded my phone with every firmware of the Open_EU since January 2020 without any problem using LGUP. Last time I upgraded to Android 10 in August, it was also successful but then check nt-code: 222201: ff started to appear everytime I turned on the phone. It's annoying, but not a big problem since the phone works perfect. However I tried to upgrade to Android 10 v405ebw30c recently, and now LGUP can't make the upgrade, it says can't cross-DL, with a strange message judypn_lao_eea ->judypn_lao_com. Could the NT-code be the cause of this? I also tried to enter the hidden menu, *#546368#*405# and I can see the nt code, but I can't change it. Nothing happens. Will I have to root my phone to make this work? or are there other options?
Some history, this phone doesn't officially exist in Sweden, where I live. However, it's possible to buy it anyway. It was sold as brand new and unlocked. The first week I discovered that I couldn't make the officially update . Then I found out it's originally italian (TIM), and probably someone that unlocked afterwards. But maybe not properly made since it was problem to make upgrades with LG Bridge. And when I succefully managed to make the upgrade with LGUP I decided to keep the phone anyway, because I liked it too much. But since this NT code started to appear after the Android 10 upgrade, I wondered if maybe there's some "leftovers" from TIM italy. So is rooting the only option for me? Except for the upgrade problems it works perfect every day.
Click to expand...
Click to collapse
I'm not sure, but worth a try,I warn the site is Russian, here's how to edit NT code https://4pda.ru/forum/index.php?showtopic=951883&view=findpost&p=100635159 here is a list of NT codes:View attachment NT_code.txtunfortunately needed root!working with QFIL do backup ftm.bin!
lexih said:
I'm not sure, but worth a try,I warn the site is Russian, here's how to edit NT code here is a list of NT codes:View attachment 5134107unfortunately needed root!
Click to expand...
Click to collapse
Thank you for your reply. Yes, I have read many instructions even on this page how to edit, cust_path_mapping.cfg, and that it's surely easy once the phone is rooted. But that's why I first wanted to see the possibilities to do this without that I have to root the phone.
suain81 said:
I have read through many posts here in the forum, where I got some tips that I have tried, but nothing that totally applied to my problem, only parts of it. I have upgraded my phone with every firmware of the Open_EU since January 2020 without any problem using LGUP. Last time I upgraded to Android 10 in August, it was also successful but then check nt-code: 222201: ff started to appear everytime I turned on the phone. It's annoying, but not a big problem since the phone works perfect. However I tried to upgrade to Android 10 v405ebw30c recently, and now LGUP can't make the upgrade, it says can't cross-DL, with a strange message judypn_lao_eea ->judypn_lao_com. Could the NT-code be the cause of this? I also tried to enter the hidden menu, *#546368#*405# and I can see the nt code, but I can't change it. Nothing happens. Will I have to root my phone to make this work? or are there other options?
Some history, this phone doesn't officially exist in Sweden, where I live. However, it's possible to buy it anyway. It was sold as brand new and unlocked. The first week I discovered that I couldn't make the officially update . Then I found out it's originally italian (TIM), and probably someone that unlocked afterwards. But maybe not properly made since it was problem to make upgrades with LG Bridge. And when I succefully managed to make the upgrade with LGUP I decided to keep the phone anyway, because I liked it too much. But since this NT code started to appear after the Android 10 upgrade, I wondered if maybe there's some "leftovers" from TIM italy. So is rooting the only option for me? Except for the upgrade problems it works perfect every day.
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So, u have 2 problems right? u want to upgrade to v405ebw30c, but can't, and you also have the nt-code error right?
First, no, they aren't related. I think that's highly unlikely. That's not something lgup checks for. I'd bet you're using the 1.14 version dll and should be using the 1.16 dll and should be doing a refurbish.
As far as the nt-code error. It's a pain, lots and lots of info about fixing it, most of them need root. But here's what worked for me, no root needed: I switched from att pie to Korean open Q (first time had the nt-error and no editing anything would fix it), so went back to att and then did the korean 409N again, first with partition DL. Let that finish, it has to reboot the phone completely to finish. Then, don't change the phone in anyway, just shut it off. Back to LGUP and do a Refurbish with the same kdz.
No more nt-error code. It *seems* that nt-error code info gets propagated to various partitions as a part of refurbish. I verified that the ftm partition, where that information lives, was completely spaces (blank) after the refurbish... it's odd, I know. But for whatever reason, I no longer have the nt-error code problem.
cheers
AsItLies said:
So, u have 2 problems right? u want to upgrade to v405ebw30c, but can't, and you also have the nt-code error right?
First, no, they aren't related. I think that's highly unlikely. That's not something lgup checks for. I'd bet you're using the 1.14 version dll and should be using the 1.16 dll and should be doing a refurbish.
As far as the nt-code error. It's a pain, lots and lots of info about fixing it, most of them need root. But here's what worked for me, no root needed: I switched from att pie to Korean open Q (first time had the nt-error and no editing anything would fix it), so went back to att and then did the korean 409N again, first with partition DL. Let that finish, it has to reboot the phone completely to finish. Then, don't change the phone in anyway, just shut it off. Back to LGUP and do a Refurbish with the same kdz.
No more nt-error code. It *seems* that nt-error code info gets propagated to various partitions as a part of refurbish. I verified that the ftm partition, where that information lives, was completely spaces (blank) after the refurbish... it's odd, I know. But for whatever reason, I no longer have the nt-error code problem.
cheers
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Thank you for your reply. No I don't know if they're related either, it was just a guess since the problems started at the same time. Well, I always had a kind of "problem" since I never have been able to upgrade from LG Bridge. And that I guess is from the NT-code. But the sign in the start appeared after the Android 10 upgrade. However, I'm using LGUP 1.16.0.3 and I have used it everytime, with DLL version 1.9.39.7.
And actually it wouldn't bother me too much having this sign in the start anyway, I only restart the phone like once per week. But of course it bothers me that I can't make the upgrade like before. And I can also mention that I have never tried to refurbish with LGUP, only upgrades, because I have some bank apps etc. that are a bit complicated to reinstall. Of course it's possible, but I have to be mentally prepared for it. So I'll only do that when I know there's no other option. And the phone work good today, so I'm not in a rush, but in a couple of months I should be doing an upgrade of course.
And thanks for telling me the other option too, I will surely try it one day but since it also requires refurbish I will try after I fail to make the normal refurbish.
I don't have any experience of rooting, if I root my phone, will I keep all the data or is it comparable to refurbish? Are the any other risks rooting the phone? I'll lose the warranty, but I don't really have the warranty anyway since it's not an official product in my country.
suain81 said:
I don't have any experience of rooting, if I root my phone, will I keep all the data or is it comparable to refurbish? Are the any other risks rooting the phone? I'll lose the warranty, but I don't really have the warranty anyway since it's not an official product in my country.
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No, to root, you loose all data and have to start again. Part of rooting is to flash dm-verity which turns off encryption. But, that allows you to do a backup of the data partition once you've reinstalled everything. The positive side there is that in the future, you could back up that partition (data), make any other changes, then flash data back, and your apps would be back as they were.
Other risks? Well, maybe, if the phone was stolen I guess, it would be easier for someone to steal your data. Your situation, with serious banking apps, it **may be** you don't want that risk...
Maybe for just trying a refurb to lose nt-code, look at LG's 'restore' from previous device ability, use it to save off the apps somewhere, then restore after refurb? no root needed.
cheers

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