yashsingh1/xdaforums huggingface dataset:
[Moto G4 Plus Questions & Answers] papabanna:
I have moto g4 plus. recently i rooted it and everything worked fine

but when i applied the nougat ota upgrade

i m unable to downgrade it to mm stock ROM or stock ROM

neither, able to lock bootloader even cant flash with recovery

every time i flash it it shows "preflash validation failed " and "piv sign not valid " for the boot and recovery image

my stock ROM is not corrupt

one more thing it also display's "security version downgrade"

pls guys help me
[Moto G4 Plus Questions & Answers] ong14:
1. enable developer option

2. enable oem unlock

3. get unlock code from motorola website

4. unlock via fastboot

Sorry, misread. I think you want to unlock BL.
[Moto G4 Plus Questions & Answers] ____Mdd:
Did you read XDA rules...? Did you search...?

There is already a thread for ReLock issue..

As you will read,

You can't downgrade bootloader if once updated...

Don't Mess with bootloader unless want a brick....

According to my views, there are no benefits for ReLocking unless want to sell phone and make buyer fool... LoL...
[Xiaomi Mi MIX  Questions & Answers] omniphil:
I finally got around to installing the latest EU stable rom, 8.0.11.0. Most apps cant seem to get a gps signal, like maps, yelp, weather widget. But when i launch Waze, the GPS icon on the notification bar pops right up and Waze find my location perfectly. All the gps settings are set to high accuracy and permission for apps are set.

Anyone else see this? Am i missing something?
[Xiaomi Mi MIX  Questions & Answers] vergilbt:
Can't confirm...

Xiaomi.eu 6.12.8
[Xiaomi Mi MIX  Questions & Answers] omniphil:
Ok, so i was able to figure out what's going on, I downloaded GPS Fix and it has 3 GPS sections, the top 2 were working fine, but the bottom one said Google Play GPS or somthing like that, and it was blank. So I went to some website that helped me uninstall the google play services and reinstall the latest one and now GPS is working fine!

Just in case any of you other folks have GPS issues you'll be able to track it down.

I'm guessing Waze does not use Google Play services for GPS and that's why that one worked fine.
[Xiaomi Redmi Note 3 Questions & Answers] mezeisterim:
Hello. I used to have cm13+radon kernel. For some time after, I flashed a newer version of cm13, then when speaking on the phone, I experience call drops. I call someone, it accepts the call, but after some seconds (sometimes it's 2 secs and sometimes it's 30 secs) the call drops. But

Then I flashed an older version of cm13 + flashed radon again. But same thing! Then I flashed the rom again (no custom kernel this time) and no problem with calls. Fast forward, yesterday I flashed RR 5.8.0 + agni kernel+cam libs. Same thing happened again. I tried some cm14 firmware, but nothing changed. (actually I bricked the phone.)

Anyway now I am on RR 5.7.4 (nougat roms are buggy without kernels) and no custom kernel. What might be the problem? I can't flash custom kernels.
[Xiaomi Redmi Note 3 Questions & Answers] goofball2k:
First thing i would suggest is installing the complete stock MIUI ROM through fastboot, and running that a few days to see if you still get the same issues.

If you don't, then you know it is something that is being done when you install the CM roms. Could be a firmware that you need to flash, could be something with CM or the rom's themselves, or the custom kernels.

You have to do process of elimination here.
[Xiaomi Redmi Note 3 Questions & Answers] mezeisterim:
Without flashing kernel, there wont be a problem i guess because, right now I dont have the issue. (rr 5.7.4 no custom kernel). It shouldnt be kernel end, because i havent heard anyone beside me experiences this.
[Huawei P9 Lite Questions & Answers] Coolyou:
So,

My phone is vns-l21c66b131 and is there any way to update to newer versions without rooting and if possible can someone write steps on how to do it?
[Huawei P9 Lite Questions & Answers] gtdaniel:
If you use <SEARCH> you find followings:

<After a few day of reading users personal experiences regarding upgrade to Android 7 Nougat i make the big step myself...

My device is VNS-L21 model and entire process goes flawless...

Device state was stock MM VNS-L21C432B150, bootloader lock, dualsim enabled.

1. Unlock bootloader folowing by Automatic Factory Reset.

2. Flash TWRP

3. From TWRP i flash Meticulus TWRP

4. Reboot to TWRP and flash update.zip and update_data_full_VNS-L31_hw_eu.zip, both flash ends with errors, without reboot between flashes.

5. After that, i reboot device and boot in system ok, start configuration, etc.

6. I reboot to fastboot and flash Nougat Recovery reworked by [MENTION=4473319]BadWolfYe[/MENTION]

I am not experienced camera bug, all works fine and i have now a fully functional phone.

BTW, dualsim remain enabled and works both sims.

Thanks to all contributors for these pieces of firmware, first of all to [MENTION=4473319]BadWolfYe[/MENTION]!>

For that's is <SEARCH>, not to open another topic for same problem...
[Huawei P9 Lite Questions & Answers] Coolyou:
Thanks for the reply, but I'm not talking about Nougat, I talk about MM b161 update. How to do it if my carrier is c66 and the newest update there is b131
[Huawei P9 Lite Questions & Answers] gtdaniel:
If you want to stay on C66 you have to wait to OTA updates...

If you make any upgrade via dload folder on sdcard your phone will go from C66 to C900 (global)

Another alternative is to debrand your phone to C432 (hw eu)

For any of this is treated here in some topics...
[Huawei P9 Lite Questions & Answers] Coolyou:
So I just need to create dload folder and put the zip there?
[Huawei P9 Lite Questions & Answers] gtdaniel:
Not the zip! Put the update.app wich is in the zip, for this method.

The zip is ok for update from TWRP.
[Huawei P9 Lite Questions & Answers] rzhw3h:
Do i lose warranty if i change to global ?
[Touch Dual, MDA Touch Plus ROM Development] ownage:
Hi, does anyone know how to enable 850mhz in this fone. please, very needed i bought thinking that this was quadband as htc elf ( touch )

thanks
[Touch Dual, MDA Touch Plus ROM Development] PseudoReal:
I am not sure this is even possible.

Is the chip supporting 850?
[Touch Dual, MDA Touch Plus ROM Development] MTM:
Yes, the chip is quadband (same chip set as TyTN II).
[Touch Dual, MDA Touch Plus ROM Development] webwizard:
It's too bad, but the HTC TOUCH DUAL does not support 850mhz :-( My home network is 850 only and the HTC is useless in it!
[Touch Dual, MDA Touch Plus ROM Development] bxwatso:
Yes, it doesn't support 850 now, but the big question is it possible to support it with a different ROM. Probably a big project to lift the code from another HTC product that uses the same chip.
[Touch Dual, MDA Touch Plus ROM Development] eyecrispy:
tom_condon is working on a new ROM for the touch dual now. maybe you could ask him?
[Touch Dual, MDA Touch Plus ROM Development] jockyw2001:
It can very likely be done by enabling a bit in the NV RF Config item.

I am working on that, see here.
[Touch Dual, MDA Touch Plus ROM Development] bxwatso:
That would be awesome. For me, 850 Mhz and GPS are the two things keeping the Dual from being the ultimate phone to date.

Thanks,
[Touch Dual, MDA Touch Plus ROM Development] tazeemn:
Telstra is selling a 850 MHz Touch Dual on their NextG Network, but it is not the same as the reglar Tri-Band device. Seems HTC is actually selling multiple versions iof the device to suit different carriers.
[Touch Dual, MDA Touch Plus ROM Development] erandhawa:
a radio update or something can help? that would be ideal since i am in the same situation 3g is on a different mhz but phone is at 2100 for 3g
[Touch Dual, MDA Touch Plus ROM Development] erandhawa:
Just found out the phone will be release in the us sometime in Q2 they say it will be compatible with AT&T 3g hopefully the rom from this new phone can help us that have already bought it.
[Touch Dual, MDA Touch Plus ROM Development] Valvarin:
...

There is a Touch Dual that supports 850MHZ codename "NEON" and not "NIKI"

There is a complete other Tranceiver chip inside.

NIKI is no Quadband Device!
[Touch Dual, MDA Touch Plus ROM Development] erandhawa:
So do you recommend selling my Niki and getting a Neon then to stay compatible with US networks? I know netrunner was saying there is a possibility the NV items can be changed to take out the 2100 and put in the 850
[Touch Dual, MDA Touch Plus ROM Development] Valvarin:
...

yes u can change the NV-Items but the Chip dosn't support 850MHZ.

OR... we don't know enought about the RFR6300 Chip.

We need internal shots or a list of Chips from a NEON.
[Xiaomi Mi MIX  Questions & Answers] riz157:
My phone came with unlocked bootloader and I want to lock it.

Any guidelines will be much appreciated.

Also how do I reset phone as i can't find any reset option in settings menu and since it doesn't come with recovery i can't even reset it using that.
[Xiaomi Mi MIX  Questions & Answers] x.0ni.x:
From which retailer did you purchase your device from?
[Xiaomi Mi MIX  Questions & Answers] riz157:
Someone I know Hong Kong.

I've managed to reset so it's ok.
[Xiaomi Mi MIX  Questions & Answers] audscott:
I don't have this issue myself, but would you mind sharing so other's with this question can find an answer.
[Xiaomi Mi MIX  Questions & Answers] imapfsr:
second that, I would love to know how you did that.....thanks in advance.
[Xiaomi Mi MIX  Questions & Answers] Aeskulapio:
I'll add my request for you to share how the reset worked, in case any other XDAers would like to do the same.

Thanks
[Xiaomi Mi MIX  Questions & Answers] riz157:
I've managed to reset phone not lock bootloader for the record.
[Xiaomi Mi MIX  Questions & Answers] Crossvxm:
For future reference, if I'm not mistaking, using ADB/Fastboot, you need to use the command fastboot oem relock or fastboot oem lock.

Alternatively, since you're already bootloader unlocked, you can place the device in EDL mode and use the MiFlashTool which has an option somewhere to lock.

I'm amazed nobody really answered this. I'll post the process later as I plan on relocking mine in order to be able to use Android Pay.
[Xiaomi Mi MIX  Questions & Answers] mmxzz:
android pay work fine after relock bootloader but samsung pay not work
[Xiaomi Mi MIX  Questions & Answers] Crossvxm:
Samsung Pay isn't available for our device. If you installed it from an APK, I am more than positive it will not work since itost likely needs to be embedded into the system on a Samsung device. In short, it's a Samsung thing.
[Xiaomi Mi MIX  Questions & Answers] mmxzz:
i mean using samsung pay with gear s3
[LeEco Le Max 2 Guides, News, & Discussion] atomicblue:
thanks for the tutorial
[LeEco Le Max 2 Guides, News, & Discussion] Amowagou:
Excellent tutorial, please add the step to root the phone for stock ROM. Thanks
[LeEco Le Max 2 Guides, News, & Discussion] atomicblue:
nvm
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
i need in order to help you:

- what is the error that occurs? can you please use the twrp file manager to locate the twrp backup path? on my device it was here "/sdcard/TWRP/BACKUPS/"123abcd-canBeDifferent"/2016-12-13_someRandomDigits" containing the syszem_image.emmc.win , data.ext4.win000 system.ext4.win000 and so on...

- canyou please also go to the console inside twrp and go to the twrp directory by typing "cd /sdcard/TWRP/BACKUPS/"123abcd-canBeDifferent"/2016-12-13_someRandomDigits" and then please type "ls -l" please post the output here ( i only need the first block of each line, it should look like this -rwxrwxrwx)

i read somewhere that you can copy files via adb... but i dont remember how that worked...

possible solutions:

but you can try to use a ubuntu live system and try to copy the files with linux

OR

you can use an otg adapter and copy the files via the file manager within twrp
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
thank you [MENTION=3932038]Amowagou[/MENTION] i never rooted my device since resurection and mokee are both prerooted :) so i dont know how to do that but i saw another very good post on that topic. basically you have to flash a supersu image.

so boot into twrp (depending on what you already have done you might need to start at point 1.1 till 6.4) and then just flash the supersu image with twrp

EDIT:

i just found the thread: http://xdaforums.com/le-max-2/how-to/root-le-max-2-changing-stock-recovery-t3512619

i hope i could help!
[LeEco Le Max 2 Guides, News, & Discussion] atomicblue:
I got it working, what happened was I didn't type the ch command in the terminal correctly haha.

thanks for taking your time to reply.
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
great, actually "chmod -R 755 /sdcard/TWRP" should be fine too i just wasnt sure what to do so i lifted ALL restrictions by granting EVERYBODY read, write and execute rights ^^

but for backing up data that should be fine ;)
[LeEco Le Max 2 Guides, News, & Discussion] Sweet-death:
Hello

First thank you very much for your great guide ! I think it is very clear and helped a lot of guys. :good:

However, i am facing an issue :

When i go to the sideload and write the code with the exact name of the zip file, it answer that it cannot read the file.

I tried to rename de file, with no special signs, replacing special signs with dots, naming it "filename". I tried to copy it in the C:\Users\Antoine\AppData\Local\Android\sdk\platform-tools it still wouldn't read it.

I tried with the indian version 16S but also 19S and both are not working.

Where should i copy the file ? What should be the name of it ? should i do something before coding "adb sideload" than just opening sideload in the phone's TWRP ?

To sum up : I don't know what to do, do you have a solution ? :)

Also, for newbies : the cmd in the twrp is in advanced, and called "terminal" (i seeked it for a long time).

Thank you in advance
[LeEco Le Max 2 Guides, News, & Discussion] kakagi:
Use Indian 15s it will work. Later change the EUI by updating it.
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
it looks like your pathname has a white space in it. you have to choose a pathname without any whitespaces. (TIP: you can hold "SHIFT" + "RIGHT CLICK" then you can click on "copy as path", but remove the quotes if you paste it to the console)

[instead of using sideload you can also try to copy the stock rom on your device and install it with "install" on twrp or you can copy it on an usb stick and connect it via otg]
[LeEco Le Max 2 Guides, News, & Discussion] Sweet-death:
Hello,

thank you very much greenManGaming. It worked when in installed it through the TWRP :)

However it did not solve my problems with this phone, still cant recieve or send mms and wifi works only with youtube but won't open internet pages (which is very wierd, i can search on google, but can't open any pages ! Maybe setting issue ?).

Anyway, thank you very much for your tutorial, it was very clear and useful.
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
i heared that the chinese services for example the location service which runs over baidu arent working great outside china...maybe there are more issues outside china????

if nothing helps you can try one of the custom roms. (but be careful with mokee. i read that the mokee rom is (or at least was) trying to make a strange connection ... but i dont know if thats proven.. i just read it somewhere)

as far as i know [MENTION=7565215]CrisBalGreece[/MENTION] MIUI should be very good https://xdaforums.com/le-max-2/development/lemax2-x820-822-miui8-1-6-12-3december-t3526832

regarding your browser problem. did you try another browser? (eg google chrome)

and also try another sms app (eg google messenger or maybe google allo)

if it didnt help, could you check which version you have right now? and maybe make an update?
[LeEco Le Max 2 Guides, News, & Discussion] CrisBalGreece:
Hello. Just take those scripts and put at the end of build.prop before flashing the rom. Those make the default DNS from BAIDU to Google DNS servers. ;)

# Google DNS Tweak

net.rmnet0.dns1=8.8.8.8

net.rmnet0.dns2=8.8.4.4

net.ppp0.dns1=8.8.8.8

net.ppp0.dns2=8.8.4.4

net.dns1=8.8.8.8

net.dns2=8.8.4.4
[LeEco Le Max 2 Guides, News, & Discussion] Sweet-death:
Thank you CrisBalGreece for this advice, before trying the custom rom (always something not working at the end of the day) i would like to try your solution. :highfive:

Could you tell me were the file is ? it's a .whichformat ? Is it in the zip of the rom i will install ? Do i have to erase something before pasting it ?

I tried to find a build.prop file, don't have any, i also went through most of the files i found but nothing in it mention "google" or "baidu" and when "dns" is mentionned nothing's written like your quote :eek:

One last question, will this solve the mms solution ?

One last last question : i didn't erase data when upgrading from 16s to 19s, could it influence anyhing in anyway ?

I tried several other browser (chrome, opera, mozilla) and also sms programs (textra, chomp sms), nothing changes.:crying:

Don't forget i'm a total newbie so you should not expect much initiative from me :laugh:
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
withour root access you need to use adb to edit the build.prop

if you want to root your device there are plenty of apps on the appstore

here are two links for editing the build.prop with and without root, maybe the will help you

https://xdaforums.com/showthread.php?t=1948558

http://www.theandroidsoul.com/edit-build-prop-without-root-using-adb-in-twrp-recovery/
[LeEco Le Max 2 Guides, News, & Discussion] CrisBalGreece:
Hello, i don't know what is the phone you have so i can't help you. Eatch phone according his OS has diefrent properties. But if you have build.prop in your system file then you my go with this solution.

Maybye the mms,sms problem is on your APN settings and not on the DNS settings. Try to find your DNS configuration .xml to see inside if supports your carrier's configuration.:)
[LeEco Le Max 2 Guides, News, & Discussion] paulsnz2:
PS I needed this dial *#*#76937#*#* and enable AT port before I could "see" my phone
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
can someone please confirm using "15 seconds ADB Installer" instead of android studio works?

i added the link of the "15 seconds ADB Installer" https://xdaforums.com/showthread.php?t=2588979 to the guide as an alternative to installing the whole android studio. If you already have the drivers you might prefer https://xdaforums.com/showthread.php?p=42407269
[LeEco Le Max 2 Guides, News, & Discussion] atzsmm:
Thanks for your drivers file. Iv finally use ur driver to connect to my max2 on windows.:)
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
i'm glad i could help! but i didnt get that, did you youse the 15 second installer instead of android studio and it worked?
[LeEco Le Max 2 Guides, News, & Discussion] Abdel1998:
[MENTION=7237607]greenManGaming[/MENTION]

You can download ADB and Fastboot Binary seperate. Without to download Android Studio. You can also download the usb driver.

Look at this: https://www.google.nl/amp/s/www.xda...parate-adb-and-fastboot-binary-downloads/amp/

:laugh:
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
thanks

so i downloaded the package at https://developer.android.com/studio/releases/platform-tools.html

i think that was just what i was searching for!! i'll post it into the first post, as soon as i find an official driver page...

if google would somewhere offer a driver zip that would be awesome ^^
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
so i found both packages

SDK Platform Tools https://developer.android.com/studio/releases/platform-tools.html

Google USB Driver https://developer.android.com/studio/run/win-usb.html

i just tried it and it seems to be a little more comlicated than the 15 second installer

anyway with this method you first have to unlock oem and enable usb debugging, then install the driver and then use adb from the consoel by openening te console inside the folder of adb.exe (but for me the command "adb usb" didnt work)
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
Thank you for sharring this thread...

Hi... anyone can help me

i'm very new to flash android....
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
i see, i had the same problem! did you install the adb driver twice (see 4.6) ?
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
finally... i got to step 7.3 but still stuck adb cant read the zip file :crying::crying::crying:
[LeEco Le Max 2 Guides, News, & Discussion] A.N.Droid:
try this while in twrp:

adb push "full path to your zip in quotes" /sdcard

wait until the transfer is complete!

hit install in twrp, navigate to sdcard, choose zip, flash.

Gesendet von meinem LEX820 mit Tapatalk
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
As A.N.Droid said, you need to type in the whole path. If that's not the problem maybe the zip is broken?? Try to download it again or maybe another rom. Let me know if that solved your problem
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
try to download again 5.8.019S and 58016S and try sideload and still cant read file
[LeEco Le Max 2 Guides, News, & Discussion] A.N.Droid:
then don't use sideload. transfer the zip to internal storage first with adb or mtp and flash via twrp.

Gesendet von meinem LEX820 mit Tapatalk
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
how to flash via twrp?

by click install?
[LeEco Le Max 2 Guides, News, & Discussion] A.N.Droid:
click install, navigate to zip, flash.

Gesendet von meinem LEX820 mit Tapatalk
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
its safe? i mean not make device bricked?

sorry to much asking coz its my first time flash using trwp
[LeEco Le Max 2 Guides, News, & Discussion] A.N.Droid:
i always flash this way, of course it's safe.

Gesendet von meinem LEX820 mit Tapatalk
[LeEco Le Max 2 Guides, News, & Discussion] inabali:
heart beating....

done... now my leeco got real rom...

Thank you :victory::victory: :good::good: :highfive::highfive:
[LeEco Le Max 2 Guides, News, & Discussion] greenManGaming:
i dont remeber why i made this step so complicated.... of course you can do it via twrp, and i guess the problem was the one i described in 7.4
[LeEco Le Max 2 Guides, News, & Discussion] neeraj12345:
Need Help

Guys,

This is very helpful thread. I tried going halfway but could not complete as I am scared of damaging my phone and something or other was not working out. I bought my Max 2 from Aliexpress recently in USA. I am coming to India in June and want it to work with JIO 4G. Please help me with couple of queries:

1. Where in Mumbai or Pune can I get it flashed and get the india 19s installed. How much should they charge approximately.

2. Pokemon Go does not work on this phone as of now. Will it work after installing 19s?

Thanks

Neeraj
[LeEco Le Max 2 Guides, News, & Discussion] zupermann:
Great tutorial. I got a lot of help from here when i got stucked and could not go on . So finally i manage to flash the twrp recovery (Teamwin 3.1.0-0) and root my phone using "BETA-SuperSU-v2.67-20160121175247.zip". The first thing i tried to make was to backup my phone. So i booted into twrp recovery and from "backup" i checked all the "boxes" under the "Select Partitions to back" waiting for the procedure to complete. A zip file was created. Before i continue i want to make sure if at this point i'd be able to : 1) Install/ flash ANY , "stock", "custom", "Chinese" and "Indian" Rom just putting the rom's zip file in the internal storage of my phone, boot into twrp and select install ??? 2) Go back to the first Rom that came with my X829 just flashing the backup file that i made the first time i boot into twrp ? 3) Has any meaning in case i use a custom (for example)rom, for a long time, to back up this rom before i flash a new rom (in order to "save" all the files, functions and setting that were made during the use of this rom) or it is better or necessary every time i flash a new rom to use the "original" zip file?