"Network unavailable" on manual System update attempt - ZTE Axon 7 Questions & Answers

Just got my Axon 7, shipped from DE to UK, thought I'd try manual software update.
Current version listed as ZTE A2017GV1.0.0B06
It times out with Network Unavailable despite the fact it is connected to WiFi and Chrome works fine as well as everything else needing internet connections.
I am on Three UK, haven't tried updating without a SIM ... is that worth trying? I did see at initial setup I was prompted to accept some sort of 3UK profile though I assumed this is just APN/MMS stuff.
Anyone else having similar problem trying to update?
I see talk of updating to B08 etc, from 2017G --- is 2017G same as 2017GV1... wouldn't want to assume anything this early on in my game
TIA for any tips/advice.
Am really liking this phone though, might be nice to get latest update for security mainly, not sure if many features are added?

Same issue here as it happens, though I'm currently trying to update WITHOUT a sim (didn't appreciate it was nano so new one on order!).
I was thinking it maybe needed one to be present to update, but clearly that's not the case.

nstirton said:
Same issue here as it happens, though I'm currently trying to update WITHOUT a sim (didn't appreciate it was nano so new one on order!).
I was thinking it maybe needed one to be present to update, but clearly that's not the case.
Click to expand...
Click to collapse
Can't speak to the EU version, but I was surprised when my A2017U would not complete initial setup (& update) without the SIM, although wifi was strong. All completed quickly as soon as I popped in the SIM.

Hi,
I have the same issue here.
I've just bought A2017G from Italy (Amazon) and I live in France. Can't have the upade to B08. There is always this message "No network" after a minute of searching. I tried with 4G and Wifi and there is the same issue!

Also can't connect
Same issue here. I am already on B.08 and have wifi/Sim in place.

Mysterious problem
I have tried many solutions but I wasn't able to update :
- used three different sim cards from 3 operators
- removed sim card and worked only on wifi
- used VPN
- tried to update via SD card form the update page and from recovery
... Unsuccessful !
Anyone have idea?

I'm also having the same problem. I live in Sweden and I just got the phone today. Would be nice if I could update sometime soon.

A2017g b06
Greenland here, I also have problems with the connectivity

Maybe ZTE is updating its servers so that the updates can finally deploy at the same time, the same version, for everyone.
Or, maybe... they are silently getting rid of Adups and moving to another kind of upload process, before **** hits the proverbial fan.
Also, Global Axon 7 here, brought via Amazon.es, sent from Germany and now used across Portugal/Spain. Running 0B08.

deoki said:
Maybe ZTE is updating its servers so that the updates can finally deploy at the same time, the same version, for everyone.
Or, maybe... they are silently getting rid of Adups and moving to another kind of upload process, before **** hits the proverbial fan.
Also, Global Axon 7 here, brought via Amazon.es, sent from Germany and now used across Portugal/Spain. Running 0B08.
Click to expand...
Click to collapse
I can understand that, but even if we put the B08 update file downloaded from ZTE support in SD card, the update can't be processed.

Hello, I had the same problem, I reinitialized the Axon 7, and I copied the file update.zip B09 on the phone, it recognized and installed the file (I was on the b08 before)

Hallo, i have the same problem with update, I have B06, somebody can give me a link to download the latest firmware and how to install it.

Yansin said:
I can understand that, but even if we put the B08 update file downloaded from ZTE support in SD card, the update can't be processed.
Click to expand...
Click to collapse
hmm I put a b09 in the sd card and it updated no problem

Solution found!
I’ve already found the solution for the manual upadate from SD card and it’s easy to do.
Theses instructions are not mine and I’m not responsible of what you do with your phone. I found them inside the update file that I Downloaded then I unzipped.
You will find a PDF document called “ZTE A2017G Upgrade Guide (through an SD Card).pdf”. You can use it to do the upgrade step by step.
Till now, all was OKEY: backup is very quickly with Zte app. The update take about 5 minutes, than the phone restarts automatically.
If you cannot find the B08 update file, try to download it from here: http://www.ztedevice.com/support/detail?id=98CEB24F9FFD433EA99EC424163149A6
Here are the steps (exactly as mentioned in ZTE Upgrade Guide)
ZTE V7 Upgrade Guide (Through an SD Card)
​1. Backing Up the Data
1) Download the upgrade package.
Open http://www.ztedevice.com.cn/support and download the upgrade package (update.zip) that matches your phone model. If the downloaded package is not update.zip, unzip the package to obtain update.zip.
Ensure that your micro SD card is at least 3GB.
2) Remove the SIM card before the upgrade. Back up the data and APPs in your phone by using the built-in Backup function. To enable the built-in Backup function of your phone (an SD card must be inserted), select
Backup and Restore from the main menu。
3) Perform data backup.
Note:
You should not remove the SD card during the backup process. To avoid data lost, it is not recommended to cancel the backup process.
4) Verify that the update.zip file in the root directory of the SD card
matches the model of the phone. Do not modify the file name and extension name of the files in the upgrade package.
5) Verify that your phone has enough (at least 30%) power. Charge the phone if required. To avoid data lost or upgrade failure, it is not recommended to upgrade your phone through an SD card when the phone is being charged.
Note:
You should not perform any other operation on the phone during the upgrade process. To avoid upgrade failure, do not forcibly remove the battery.
A normal upgrade should be completed in 2-3 minutes. If the phone does not reboot or show any response in three minutes, you should perform the upgrade process again. If the phone cannot be started, perform a forced upgrade. If the forced upgrade does not work, you should contact an after-sale service agent for support.
2. Upgrade Description
There are two upgrade methods: normal upgrade and forced upgrade.
If the phone cannot be started properly, for example, the phone cannot be started, or the phone does not enter stand-by state, perform a forced upgrade. If the phone can be started properly and the Settings menu can be selected, perform a normal upgrade.
3. Upgrade Steps
A. Normal upgrade (the primary upgrade method)
1) Download the upgrade package that matches the phone model from ZTE official website (http://www.ztedevice.com.cn/support/), extract update.zip from the package, and copy update.zip to the root directory of the SD card (the file name must be update.zip
2) Select System Manager > File Manager> SD Card from the main menu, and verify that the update.zip file in the root directory of the SD card is proper.
3) Tap the main screen is displayed. Tap and select SETTINGS >All setting > Updates>,
4) Click INSTALL, The phone automatically powers off and reboots. the SD
card upgrade screen is displayed,
After the phone is upgraded, it is rebooted again. After the phone starts properly, it is recommended to manually restore the phone to its original factory default settings. The phone is upgraded properly and can be used.
B. Forced upgrade (for the phones that cannot be started or the phones that cannot enter standby state)
1) For a powered-off phone, press and hold both the volume key + and power
key to enter into Recovery mode.
2) Press the volume key - to select apply update from sdcard, and press the power key to confirm it.
3) Press the volume key - to select the update.zip file, and press the power key to confirm it. The phone completes the upgrade process in about three minutes.
4) On the Upgrade Complete screen, select reboot system now and press the power key to confirm it.
4. (Optional) Restoring the Data
If you have backed up data before upgrading your phone, restore the data.
1) Backup and Restore important user information.
2) Perform data restoration.
Note:
Do not remove the SD card during the restoration process. To avoid data lost, it is not recommended to cancel the restoration process.
An interesting thread: http://forum.xda-developers.com/axon-7/how-to/manual-updating-a2017g-t3519104 !

Thanks, but i tryed to install this update but I get an error that it is not for my phone, i have ZTE A2017G_1817 buildnr. ZTE A2017GV1.1.0B06
Have I don anything wrong or do I need an other file
Regards

Same problem on my axon 7 a2017g - updated via updater from b06 to b08 - network unavailable trying to check update to b09

Same white me, then I tryed it with the downloaded updat.zip from B08 and he start the update bute later stopt whit the message this file is not for my phone ??
Where can I download the B09 update.

keesvl55 said:
Same white me, then I tryed it with the downloaded updat.zip from B08 and he start the update bute later stopt whit the message this file is not for my phone ??
Where can I download the B09 update.
Click to expand...
Click to collapse
The file is on ztedevice (link in thread) but i think (as some of other users) that this patch is only for Spain - don't know that for 100% but most ppl that can upadate it with OTA are located in Spain. Also I still get "network unavailable" when I trying to check update (location Poland, phone from UK). But you should can update from B06 to B08 as I can without any doubts via OTA.

MrMD69 said:
The file is on ztedevice (link in thread) but i think (as some of other users) that this patch is only for Spain - don't know that for 100% but most ppl that can upadate it with OTA are located in Spain. Also I still get "network unavailable" when I trying to check update (location Poland, phone from UK). But you should can update from B06 to B08 as I can without any doubts via OTA.
Click to expand...
Click to collapse
Here the problem is solved, this morning the ota update worked en now he is installing B08.
I downloaded B09 en wanted to go install it and than the give me the original B08 update in the screen, let see how it works.

As for 1.01.2017 update check start working for me - no more "network unavailable" just "up to date" at B08 a2017g.

Related

Is there a way to force another Software Update?

Tuesday
306sh activated with MVNO, SA300 firmware, rooted, with TWRP recovery,
working fine for past 2 months.
For unknown reasons, it decided last friday (at home, none to low signal) to do a system update
(from SA300 to S7232). Phone - on the desk- just "dinged" and msg came up "updating
system software". I attempted to cancel, but it didn't respond. Less than a minute later, "Update Successful" msg. Didn't reboot, anything, settings showed S7232 firmware. (SA300 before,
i had done my weekly backup earlier that morning).
Since then, phone constantly reboots at the "Aquos" screen; after an average 8 hours of rebooting, it will boot to setup, the talking setup screen. Works perfect for about an hour then rebooting starts again. Let battery die last nite, tried again this am - same thing rebooting.
TWRP backups don't fix problem- weekly backup, i have 6 i've tried, factory reset doesn't fix, if i try to Software Update, it checks, tells me, "up to date".
I turn on wi-fi to use the phone from home, , guessing it did a ? hit & miss ? ota update since the
wi-fi was off when it attempted the update. Home is a very minimal signal area.
Any way to force it to take the S7232 update again?
(I could update over wi-fi if i had wanted, only i didn't want the update anyhow).
thanks, rik
I can give you a link for a backup with latest firmware, you will have to wipe data tho
https://mega.nz/#!fkommKgJ!fkiaT_p8ZFOBzyJpUdNAqOZlTWpt-5hNuQ-2vvA5tSQ
This is a full backup from newest firmware but you need to wipe data before boot
sent from rooted 306sh
Stick firmware updates are not compatible with custom recoveries
sent from rooted 306sh
Just home, thanks
Hi,
Thanks for the help, just home from work (rough), so i will plug the
Aquos in tonite and hopefully be able to try the file tomorrow,
(that 8 hour boot thing), just downloaded your file, i'm ready.
This is my take-to-work personal phone, sprint zone, and i missed it today.
Your help is really appreciated.
rik
Final note
thought i'd just post to let you know the phone obviously had big problems
-- it failed to start today -- just buzz on buzz off -- even after 4 hours charging,
all i could get was the battery dead screen, wouldn't come on at all.
Guess the real problem was with hardware, i laid it away in the junk phone box
in the attic, end of Aquos Crystal.
rik
I downloaded this backup and yesterday to restore the firmware, works great, huge thank you , you saved me. :хорошо:
can you help me?
badbadri said:
I downloaded this backup and yesterday to restore the firmware, works great, huge thank you , you saved me. :хорошо:
Click to expand...
Click to collapse
can you help me dude? :crying:
im already download this firmware and confuse how to restore it
im looking for how to root my phone but always confuse
and finally i installed supersu on playstore and reboot
im waiting for 5 minutes and not booting, and im plug my phone to pc and the computer request for formating all my storage
and my phone can enter the recovery mode and i go to wipe data & factory reset, and still not work
can you send to my email?
my email is [email protected]
thx ..
Question: My 306SH would not update (still at S8216). Could use your back up to update my firmaware?
After 306SH ph was acting weird, did a hard reset & saw system Software updtd to S7232, & unk file in Misc (.eCtcQjbu1dgnvtFnvnr6yepTp1M=) I then installed Malwarebytes & scan detects this S7232 software update as malicious malware Android/PUP.RiskyTool.Agent.ay (dm.redbend) "/system/priv-app/fotaClient.apk". When going to System to do an manual update, Malwarebytes popups w/same msg every scan "Software App", even aft reboot 2days ago 7/12/2017. And phone wont let me create new google acct. An error that "google account mgr not working" popup & I see that same unk file reappears. Ph not rooted -XDA says "there's no root for 306SH that works">see XDA blog 'Root for Aquos Crystal 306SH ONLY'.
Go to the Sharp USA website for the 306SH firmware, and see what firmware you are on.
Download the firmware from the versions higher than yours, and if there is a repeat, notably "kernel.img", download the most latest version of it.
Then, plug your device into your computer, make sure you have the proper drivers installed for the Sharp Aquos Crystal installed on your computer. Boot your device into bootloader. Go to a terminal, cd to the directory where you downloaded your .img's from the website, and do
fastboot flash kernel kernel.img
Ex.
fastboot flash foo foo.img
And you can flash all the latest updates. When done, exit the terminal, make sure the device is unmounted, unplug from computer, and reboot your Crystal.
Hooray, it should be updated!
turkbot said:
I can give you a link for a backup with latest firmware, you will have to wipe data tho
(Mega-nz link expired)
This is a full backup from newest firmware but you need to wipe data before boot
sent from rooted 306sh
Click to expand...
Click to collapse
Turkbot, I hate to beg on my first XDA post, but is there any chance that you still have that ROM and is there any chhance that it's not TextNow loaded? I've got TWRP, Busybox, SuperSU, Xposed, and I've tried every which way to edit the prop, tweak it with modules, unlock etc (it even works with my Sprint MSL, but crashes when I try to manually set my MDN and MSID) It just says no SIM/no service and refused to give me any signal except for GPS and WIFI without one. Countless 'techs' over the phone and 3 different Sprint repair stores claim they don't have the stock firmware and Sharp actually claims that the reason they can't help me with the firmware is their contract with Sprint forbids it.. If you still have the file or a TWRP / Titanium etc backup you would be my savior.

Oneplus 5 stuck on setup?

EDIT: Solution was to sit with OP5 technician which flashed my ROM to Oxygen 4.5.1. After this didn't do it, I RMA-ed it and got a new OP5.
EDIT: TL;DR: After updating OP5 to 4.5.5, It doesn't recognizes sim nor wifi, and can't rollback to 4.5.3 that did and stuck on phone setup (needs wifi). ADB devices is empty, I have Google USB Driver from SDK, Windows 10
Hello,
I just got a new OP5 today.
Opened it in the store, came with Oxygen 4.5.3 outta the box.
I putted the sim in, and I connected to the store's wifi, all was good and even had a phone call to my mother to check if the mic and speaker are working well.
Then when I got home, I upgraded the OS to 4.5.5 through the settings, where Android suggested. I'm new to OP and android (moved from iphone 5) and so if there is a right way to do it, and that's not it, I wouldn't have known.
Then, OP5 didn't recognize the sim anymore and couldn't start the wifi (switching it on wouldn't work, it would do nothing), so I tried Factory reset. Unfortunately it didn't reset the OS as well and now I'm stuck outside can't use my sim card or connect to my home wifi to setup the device.
Tried installing OP5 usb drivers (show when connecting the OP5 to PC) and press the power button and lower speaker volume together, then flush the 4.5.3 OS through USB, but it doesn't recognize ZIP folder and when I tried to unzip and send boot image (cmd->"adb sideload boot.img) it started and then failed at 0%.
Please help, the phone right now is unusable.
Tried the Factory reset through settings, but it took so long I thought it was stuck, so I did it through recovery screen.
Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...
ultramag69 said:
Sounds like you got a lemon... I'd take it back and see if they'll swap it for another. Less than a week should be replaced immediatelly, at least that's been my experience here in Oz...
Click to expand...
Click to collapse
Why should it be replaced in less than a week? Also, isn't there a fix for adb problem so I could flash 4.3.5? Maybe a remote takeover?
Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.
ultramag69 said:
Mine had 4.5.3 on it when I got it, updated to 4.5.4 then manually downloaded full rom, placed on internal memory and flashed 4.5.5 through the settings.
Had zero problems with WIFI before, during and after the update. No problems since.
Generally updating to a higher firmware version won't allow you to regress back to the lower, not sure with Oneplus as this is my first.
I'd also, if you can boot into Android go to settings nd check my IMEI numbers to see if they have been wiped (this can cause the sim to not be recognised) . If you have no IMEI then that is a BIG problem which will require an RMA unless you had backed up your efs files which from your description I doubt..
If the IMEI is OK I would download the full firmware version from here - https://forum.xda-developers.com/oneplus-5/how-to/oneplus-5-mirrors-official-oxygen-os-t3628190 - then using PC put the FULL ROM onto the internal memory then go to recovery and flash.
I'd also then unlock my bootloader(Just remember though that the phone will wipe all data after unlocking bootloader) and install TWRP - don't forget to 1st enable developer mode in settings and then allow usb debugging and OEM unlock - make a backup of the working stock rom and put it somewhere safe - home PC, in case this happens again. Best idea is to use the all-in-one tool, here - https://forum.xda-developers.com/on...l-skipsoft-android-toolkit-oneplus-5-t3625419 thankyou MSkip.
Click to expand...
Click to collapse
I can't pass the "Connect to Wifi" in the initial setup of the android, as it finds no wifi networks (but of course there are, when I use the sim in my iphone it works properly and there are wifi networks). So I don't know how can I get the IMEI number.
Right now my PC recognizes the OP5 connected via USB, but "adb devices" bring back empty list.
I think that once I get that working, I could unlock the bootloader. But I can't seem to be able to enable dev mode in settings - I can't get there.
I can only get to the recovery screen beyond the initial steps of setting up android.
Right now there is no important data on the phone and I have my laptop which is virgin to ADBs and Drivers (didn't use it to try to resolve it).
What driver and where do I get the right ADB so I could load 4.5.3 from usb to the phone?
When you upgraded, did you wipe cache and dalvik?
Binary Assault said:
When you upgraded, did you wipe cache and dalvik?
Click to expand...
Click to collapse
Wiped after the upgrade whem problems started
Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.
ultramag69 said:
Might be wrong but I thought you could skip the wifi select screen on the setup wizard.
If you can get to Android you need to go to settings, scroll down to about phone and tap around 8 times on build number to enable developer settings.
You might be able to, might, pull down the settings menu in the wizard and bypass the wizard.
Click to expand...
Click to collapse
It doesn't seem like I can skip it. Can't pull down a menu or anything
I guess only Oneplus can help me now?
Do you have any suggestion on fixing adb so it would recognize the OP5?
No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...
ultramag69 said:
No, you need to enable debugging in developer settings for ADB to recognise.
Time to RMA...
Click to expand...
Click to collapse
Welp it is a pickle.
Going to go live chat with OP "level 2" representative.
See if they wipe the phone out and restore an older ROM.
If that't not going to work, RMA it is :/
Shame. A new phone. Took only one picture with my dad when we opened it back at the store. nothing else.
Unfortunately bad things can happen... You just got to be the one who got the dud this time round.....
Here's hoping it's the last time....
you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.
OcazPrime said:
you can force update to a fresh installation of 4.5.5 by putting the 4.5.5 full zip into your phone in a folder called "update". Reboot to recovery im assuming you have stock recovery and follow the steps until you find the option that says something along the lines of "Update manually". It will detect if you have an update folder stored on your phone and it will begin reinstalling OOS 4.5.5. It sounds like a software problem but could be a hardware problem. Rule out the first option before RMA the latter.
Click to expand...
Click to collapse
When I connect the OP5 to the PC there are no folders under it (Computer -> OP A500 -> no folders), but I'll try and give it a shot. see what happens. Will update this reply.
Update:
After Oneplus flashed Oxygen 4.5.1 on the phone and some other magic I was able to skip wifi step on setup, yet still when I try to activate it it won't budge. the slider won't move and it looks as the page is being refreshed. Also, when I try to get into sim section in settings it would just freeze and alert the program stopped and suggest to close or wait.
Oneplus says it is hardware issue, and the fact it happened when I upgraded to 4.5.5 from settings menus is coincidence. They say I need RMA it.
If anyone knows how to fix it then I'm more than welcome to hear it.
EDIT: it also won't shut off unless I long press the power button.

Can't delete update.zip after updating + Faulty Update

Good afternoon.
Finally, after posting this thread in March, I had enough time for try to update my Huawei P8 Lite. As pointed before, I was coming from Compilation ALE-L21C40B181.
I used Firmware Finder for Huawei to check the Telefonica Spain update to Android 6.0, and found the version is ALE-L21C40B508.
I downloaded the ROM in two ways: Using the App to force a VPN connection and download it, and using this webpage.
The update.zip I downloaded from Firmware Finder didn't worked, as it failed at 5%.
I copied this failed update.zip from the folder where it downloaded, to dload_ota, and tried to do a Local Instalation. It didn't recognized the file.
I copied it to External SD>dload and it recognized it. Tried to update, and again: Failed at 5%.
Finally, I decided to use the web-downloaded .zip, and replaced the External SD faulty file, but didn't deleted the dload_ota faulty file.
When I used the B508 downloaded from Fordroid, it worked amazing! However, as the .zip file is very heavy, I tried to delete them.
Guess what? I can't delete the dload_ota faulty .zip
Also, when I checked I lost the Root Access, I thought in a probably easy way to root it. Following what I learned from my Motorola XT907, I tried pressing Vol Up + Vol Down + Power to enter to Bootloader Mode, before checking on internet the tutorials.
Something weird happened: IT TRIED TO UPDATE AGAIN
Someone knows how to solve both issues? (I will try to find the rooting method after, but now I want to solve both the .zip undeletable file + update retrying)
I just did a Factory Reset to find if that could solve the problem (and believe me: I didn't wanted to do it in any way), and the file dissapeared. I don't know what was going on, but everything solved with a Factory Reset
Now I'm wondering why the phone told me my phone is Rooted, if I'm using a Stock ROM ._. but I'll find that later.

A2017G Oreo B.04 How to downgrade unrooted phone

Hello,
If there would be anybody who could help me in my problem I would be very grateful!
I was a happy nougat b.09 user when I tried to upgrade the phone to newest android, I installed Oreo B.04 and the phone got much slower, now tends to stutter on web browser and the battery life jumps like crazy. I went on for few weeks but now I can't take it anymore, I want to downgrade to Nougat, probably to B.12, but when I put either N-b.12 or N-FOTA-B10 to B12 from the download center thread into my sd card and rename it to update.zip, the phone still doesnt see it and I cant downgrade.
Is there a safe way to downgrade phone without root or risk of loosing data?
Btw. when I was upgrading the system few weeks ago i went form Nougat.b09 to nougat.b12 then oreo.b02, then unfortunately i downloaded nougatb.04 (mistaken it for oreo) and downgraded phone to it, repeated the process to get oreo.b04 - maybe this process made my phone slower? (but seems unlikely).
The accidental downgrade to N B04 is likely the big issue.
I would try flashing oreo B02, factory reset then flash the downgrade version of Nougat B12, not the regular one but this may actually be a case of needing an ADB connection or similar to reflash it with correct partitioning so I will defer to more experienced modders on this.
If you are on B04 Oreo right now, download the B12 package from a official ZTE source (ZTE Australia has the link for it). Same thing, rename to update.zip and put it in root for SD. If phone still doesn't detect, boot to recovery (power+volume up button), select the wipe/erase all data option first, select yes. After that, select Apply update from SD card then select the update.zip. package. Probably do another data and cache wipe just in case after its installed

Bricked Axon 7, no phone functions just Data

I have an A2017U but since changing from stock rom B35 to B01, I have lost all sim card and phone functions. I've tried all these - B05, B15, B10, B35, B20,, B19, but all firmwares are identified as "not for this machine" error, and all relevant apps and "About Phone" information now indentifies the model as A2017G, which it certainly isn't. Is there a rollback set of firmwares I could use to regain mobile network functions back to this phone. Firmware installed is B01, and when I bought the phone it had B35 installed. I don't have a PC just mac, so all those nifty workarounds, I can't do.
Please Help
@Pigeon357
Hello,
Assuming you have stock recovery, you can get ZTE_A2017UV1.1.0B35 firmware here:
https://www.getdroidtips.com/zte-axon-7-stock-firmware-collections/
Normally the download file should be a zip, unzip it, you will find update.zip file. Put update.zip on the root
of your SD card. Then go to Phone Settings, search for update, it should tell you your current phone version
and the update it finds and suggests. Then tap on update : it will update for you then reboot automatically. First reboot
should be a little long (< 5 min). Then you should be back all right to B35 and phone OK since the right modem for A2017U is included
in the ZTE_A2017UV1.1.0B35 firmware.
Note : I guess you have applied incorrect A2017G firmware to your A2017U, this would explain the phone problem (incorrect modem).
Fixed!
dnlilas said:
@Pigeon357
Hello,
Assuming you have stock recovery, you can get ZTE_A2017UV1.1.0B35 firmware here:
https://www.getdroidtips.com/zte-axon-7-stock-firmware-collections/
Normally the download file should be a zip, unzip it, you will find update.zip file. Put update.zip on the root
of your SD card. Then go to Phone Settings, search for update, it should tell you your current phone version
and the update it finds and suggests. Then tap on update : it will update for you then reboot automatically. First reboot
should be a little long (< 5 min). Then you should be back all right to B35 and phone OK since the right modem for A2017U is included
in the ZTE_A2017UV1.1.0B35 firmware.
Note : I guess you have applied incorrect A2017G firmware to your A2017U, this would explain the phone problem (incorrect modem).
Click to expand...
Click to collapse
I used B03 stock room and still had no phone functions, then I did another SD Card update with the B20 and it worked, I have all the phone functions back and am on the latest stock Oreo build too, I'm so glad to get it back, as I was using a spare Android phone on version 5, it was so slow, but it's fixed now.
Pigeon357 said:
I used B03 stock room and still had no phone functions, then I did another SD Card update with the B20 and it worked, I have all the phone functions back and am on the latest stock Oreo build too, I'm so glad to get it back, as I was using a spare Android phone on version 5, it was so slow, but it's fixed now.
Click to expand...
Click to collapse
The key part of the method was to remove the Google account before updating in recovery mode

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