yashsingh1/xdaforums huggingface dataset:
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Do you have your bootloader locked or unlocked? Cause it can't be done with boootloader unlock unless you use slim rom by raysteff. If your a7 bootloader still locked, yes you need to downgrade to B02, download B04 update about 600MB size put it to sdbcard.

Make sure you have enabled usb debugging on developer setting, reboot into recovery and apply an update with SD Card.

Updating through setting Update wont work
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Oh well, I got bored and nothing seems to be happening with ZTE so wiped cache on B03 from recovery, rebooted, backed up phone, downgraded to B02 the normal way, SD card from settings, rebooted, copied B04 update to SD and renamed, switched allow oem unlock in dev options, turned off, entered recovery, wiped cache, and did sd update to B04 via recovery, wiped cache again and booted. Rebooted.

It runs and still seems to have my data. Setting up Daydream and will monitor it tomorrow to see how it goes. Will test work mode too.

My Daydream controller was too flat to update so will have to test tomorrow after charging.

I'd be interested to know what bugs people get on B04 when it was installed properly as an update from B02 in a non modded A7, or does it just work well for you? So far I already see the 10 second power button press bug.

Edit: Anyone else have a broken camera? Stock isn't working but neither is Snap. Dealbreaker if I can't get it going.

Work mode seems fine with Microsoft InTune portal. Daydream works with my Daydream View 2 but having problems with the original Daydream View controller not pairing after firmware update. Will try resetting the controller and clear VR services app data and start again.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Reset my Daydream View controller and it paired ok so then paired back to my DDV2 again.

Got camera working ok again. Backed up photos then had to clear camera and gallery cache and data and reboot. Snap Camera HD then worked ok too so it must have been the gallery app.

Will iron out the wrinkles one at a time. Resisting the urge to reset the phone. I probably will eventually but do want to solve the little problems so it helps others facing similar troubles and I learn from it.
[ZTE Axon 7 Guides, News, & Discussion] pat_net:
Hello,

Be careful, I got B04 update on B02 with unlocked bootloader - phone is almost bricked because EDL mode is still on but doesnt respond to any button :(

Its possible to lock BL now?

BTW I got official update from ZTE OTA.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
The important thing that seems to be overlooked by many is that starting with unlocked bootloader, everyone seems to have problems. Mine is locked, always has been.

Never had non stock software in it.

To apply B04 update I did have to switch the "OEM unlocking" option in dev options but that's all. I updated and then switched it off afterwards. There were no ADB operations involved in preparing the phone.

B04 doesn't have Camera2 API enabled does it?
[ZTE Axon 7 Guides, News, & Discussion] Meron35:
The same happened to me. How did you end up fixing it?

I've tried flashing with MiFlash etc but they don't work (missed hello packets error)
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Yes you need locked bootloader to flash b04 (unless maybe if you flash b04 slim rom by raysteff), camera2 api still disabled and you can't use Gcam.
[ZTE Axon 7 Guides, News, & Discussion] pat_net:
Ok, my phone is working now after reflash A2017G_B02_OREO_FULL_EDL.

Phone has been locked in Qualcomm9008/DFU mode but after opening Axon7_EDL_Tool I could use MiFlash normally - flashed the second time.

Fk this update ;(

ZTE OTA doesnt check that BL is locked or not...

Is it even possible to lock Bootloader on Oreo B02?
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Mine prompted me in recovery that I needed to turn on the OEM unlock option. Refused to flash otherwise.
[ZTE Axon 7 Guides, News, & Discussion] pat_net:
I installed B04 OTA update second time without any warning or error - phone ends bricked again.
[ZTE Axon 7 Guides, News, & Discussion] Meron35:
I managed to fix it. Posting here mainly for other people who may have had the same issue.

Originally had an Axon 7 with unlocked bootloader on B02. Downloaded B04 OTA and the installation bricked my phone by putting it into what seemed like an endless EDL loop. Device shows up as a Qualcomm device in device manager so it wasn't in DFU mode. No amount of button combinations would get me out of this.

Attempting to flash EDLs via Axon7Toolkit, Axon 7 EDL Tool, MiFlash etc were all unsuccessful. MiFlash shows the missed hello packets error and EDL Tool hung on loading the .elf file.

Final solution was to just let the battery drain itself (can tell when this happens because the red LED flashes when power is pressed). Then charge it a little bit so that it can boot into EDL and flash/reset from there.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Mine is still running ok, seems to have gotten better with more use. I guess just that apps cache data.

Haven't had any further issues to fix yet so just the 10 second power button press not working as reported to be a kernel issue.

Will pay more attention to battery life next week once back in a routine with it.

It was a gamble for me as I use it as my work phone but hasn't caused me grief yet.

I can say that Daydream does still smash the battery in a huge hurry :eek:

Don't go B04 just to get Daydream back, but I personally do like that my phone is Daydream functional again, just because it was supposed to be from the start, but that's just me being OCD :rolleyes::D
[ZTE Axon 7 Guides, News, & Discussion] pat_net:
And that information is funny because SL!M8 dosnt have "10 second power button problem" with stock kernel... As well as with unlocked bootloader.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
That's obviously the way to go if your phone was already unlocked as he fixed the issues.

I can't. Mine has strict security requirements for work use with Microsoft InTune so I won't go near TWRP and keep it locked. It was a pain getting it approved in the first place. A major reason to update is the newer security updates in the ROM.
[ZTE Axon 7 Guides, News, & Discussion] haqfleisch:
I just finished fixing the old Axon of mine that I gave to my mom. I reverted it to stock, so it would "just work", but left the bootloader unlocked for when the Axon goes EOL. Silly me, having trust in ZTE's software...
[ZTE Axon 7 Guides, News, & Discussion] totmakina:
Since [MENTION=5334294]raystef66[/MENTION] took out the slim B04, that's the best option to have b04 in an Axon with unlocked bootloader.

If the bootloader is locked, a good option is to install from update the update b04 from the sd.

It is totally impossible to have stock b04 with the bootloader unlocked. If you want to block again the best option is to return to MM and block the bootloader from fastboot. Once there you can update to Nougat and then to Oreo b02 and b04 from sd.
[ZTE Axon 7 Guides, News, & Discussion] MethodMan:
No update for the A2017U?
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
This thread is specifically for the A2017G and official B04......
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
So how are people on B04 going with battery life now?

I had a recent weird shutdown when I woke the phone up. It showed 22% though. It had been unused for hours and was at 26% when last looked at.

I plugged in the charger and it was still over 20% by the phone's reckoning. I went through and looked at anything that could be draining it in the background. Seems ok again but will allow it to run down low and watch what it does again. Makes me concerned the battery has been damaged and lost capacity.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Mine too I got the same issues. Battery life still seems better than B02 although AccuBattery said it only 1950mAh capacity counted.

But as you said I notice sometime it shutdowns by itself, red led blinking, I need to turn it on again. But this only happens when I'm not using my phone or it is in idle status. The battery still shows above 20% then when it turned on after the shutdown.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Hmmm, maybe another kernel bug with powersaving features or monitoring? Inaccurate level?

I have my power saver turned off but the auto start percentage (if it was on) is set at 15%.

I did have a recently installed app which has been uninstalled.

I'm watching battery level today. Both phones came off the charger about 6am this morning and at 10:46am both are still over 85%. Using both to try and drain them similarly.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
I don't know but I never turn on the power saver option when this happens. The shutdown did happen recently, months after it went just normal... Or I just notice it maybe

It happened yesterday in my pocket, I thought it was just something pressed on power button on it accindentally in my pocket, untill I saw you got the same issue

Today I'm thinking off downgrading, unlock BL and root again this phone but considering all the previous firmware has worse battery life, I need to think again. I don't know how other users feel about the battery in B04, but for me it's still the best.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Well, my A7 mini is at 77% and the A7 at 74% at 5:30pm so both idling quite well. Will probably let them both keep going into tomorrow without charging and see how far they get.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
That seems so good. Today my A7 shutdown again at 67% battery. I did reset app preferences and going to notice if there will be any fix for this issue.

The only annoying thing about restarting this phone is that it needs to choose SD card status again and re-read whole files on sd card.

And one issue I found about greenify, it keeps on reverting back to off in accessability, so can't just tap the widget to kill background apps, it requires to activate it again on accesability setting
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
A7 mini at 65% and A7 at 68% at 9:19pm. Have to switch to using A7 again to keep use even.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
I used my A7 last night and ran it down to about 33% and left it overnight idling with data and wifi off.

I woke it this morning and it showed 30%, blinked red and shut down.

This wasn't happening on B03 so I will have to regress the phone again. Got to be a kernel issue. Disappointed because it's great otherwise. I even got Dolby Atmos working properly again. I'll have a look at it this weekend before making a decision because it's a big deal to set up for work use again from scratch. Might email our office admin and see how I stand for getting a work supplied handset.

Edit:

Haven't given up on it yet, so far the issues I've had with B04 have been mostly cached data so before making any decisions I go in and clear the data and test. There is an app for the power management. I cleared the cache last night but if it still plays up I'll clear the data too, then go through my settings again.

It's got down to 25% and seems to be hanging there, maybe it's recalibrating itself to battery life? Going to leave it and see when it dies and what happens, if I can catch a visual on it at that point. Previously it was when waking it from deep sleep overnight, this time it's at work and active.

Edit:

It ran at 25% for quite a long while then started dropping. I left it and later found it off. When I put it on the charger it came on at 19% so either my power app data needs clearing, battery is dying or B04 is no good.

When it finishes charging to 100% I will clear the battery app data and re-test. If it turns out B04 is simply to blame I may regress it to Nougat and see how it runs. If the battery is going, I'll set up my old Huawei Mate 7 as my work phone if they don't get me a phone. Only then will I risk dismantling it to replace the battery. I'm not convinced it's really stuffed.
[ZTE Axon 7 Guides, News, & Discussion] Dodgexander:
Download accubattery, use the phone with it running for a week and see what your battery health is. Really sounds like a bad battery to me, which really isn't unusual given how old the phone is now. I am coming up to using my second battery and I bought my Axon 7 later than most people.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
The thing is, it never did this before B04 and mine isn't really all that old. I got it quite late compared to most here.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
I still have the same weird shutdown issue at least once a day, I can confirm my battery is normal (or lost capacity as the accubattery said but never turn to 0% suddenly as we find in broken battery issue)

Today it's vibrating when suddenly shutdown in idle status. No red led blinking. But it's completely turned off.

Luckily this never happens when the phone is in use or screen on
[ZTE Axon 7 Guides, News, & Discussion] l_STRIKE_l:
I am currently on B03 having the same issue. It happens quite often when the device is in use (not in idle mode), no matter which battery save mode is enabled. At some point it shuts down. In the status bar the battery level shows 0%.

After plugging in the charger it shows the correct value (around 20% most of the time). I also thought about a damaged battery or something like that. But it seems like i am not alone with this issue....
[ZTE Axon 7 Guides, News, & Discussion] Tunox:
I have an issue when loading the battery overnight. When it comes to 100% load then after a few minutes or hours (cannot check because sleeping) the phone reboots.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Trying an experiment tonight, I let the phone go two days on it's charge, it's idling very efficiently now. I went into settings to uninstall any unused and unwanted apps and found three I didn't know the purpose of. Googling their names showed all three were connected to a peripheral device I had tried to use but didn't get working. Uninstalled those and they could be part of the issue as there was a listener included.

I got to 15%, had music playing over the built in speakers, had my shower, booted the PC and I'm typing this as it still plays. Now at 3% as I type.

I'm keeping it awake by the music player to see if it gets to 0 as it should. Now 2% still playing. I will do it again but let it sleep at the end and then wake it. See if it is fixed or if the problem does just happen after deep sleep.

1%, time to stop it and put it on charge.

Edit:

Lol, left it just a bit too long and plugged it in but it shut down, but it seems to me the battery is not stuffed, it's got to be a software issue in my case.

Edit: I had issues with work mode so now have had to reset the phone. See how it goes. If it's no good work will lease me a new phone for business use.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
It really looks like software problem. There's something in idle mode that forces it to shutdown
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Well, it's at 28% and I just turned off data and wifi and locked the screen for the night. See what happens in the morning.

I've set up a fair bit now after the full reset, still on B04. It's been operating nice so far. I'll use the A7 mini for alarm just in case the A7 dies again. Don't want to be late to work.

If the battery is ok and it miraculously behaves now, it will become my personal phone again soon as work is going to get me a new phone on lease. The A7 mini will become just a multimedia toy again. The A7 is far more powerful and just faster/smoother to use, although for the money the mini is a bargain for what it is.

Edit: I hit the fingerprint sensor this morning and it unlocked instantly, raring to go. Only lost 1% overnight lol, so no conclusions to be gained yet.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
So it's still faulty for sure. Shut down on me at work after waking it.

This means once I get a new work phone I'll reset it and try to regress back to Nougat, or just go back to B02 or B03 and then see if the issue remains.

Maybe the battery has indeed started dying by coincidence after updating :confused:

So guys, reverting from B04, best strategy?

I'm thinking reset, flash back to B03, reset then flash the Nougat B12 revert version, then flash regular B12.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Well I bit the bullet and started downgrading. B03 wouldn't go so I went back to B02, reset again, now going back to N B12 reversion ROM.

Wish me luck....

Edit: Back on Nougat B12 and setting it up from scratch. See how the battery/power behaviour goes.....

I flashed the revert ROM and reset then flashed regular B12 and reset.

One thing I noticed straight away is that the UI is not as fluid as with Oreo.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
After all this stuffing about trying to work out if my problem is Oreo software or a hardware problem, it still does it on B12.

I had to know.

So, now I look at whether to open it up for a battery swap. Bugger!

Won't do anything further till I have a new work phone, but I may as well have it on Oreo B04.
[ZTE Axon 7 Guides, News, & Discussion] elb0wf4ce:
Soft bricked mine on Thurs due to battery issues. Somehow ended up in Factory Test Mode and power button wouldn't work so left it to power off with true zero battery instead. Took about 8 hours. At least my battery is calibrated I guess. Seems like something went wrong with battery stats during the upgrade. I went from 78% to about 38%, then 30%. After a reboot it was back up to 37%. Phone started shutting down at 30%. Things seem better since the soft brick and battery full drain.

Anyone else having issues with Dolby Atmos? It sounds better now with no static but adjusting the settings and switching presets has no affect on the sound whatsoever.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
I had trouble with Dolby Atmos too. Have to clear the apps cached data. After that it worked again.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
I'm going to try to reset my battery calibration stats too. Will run it down, recharge etc and see if it can adjust. Obviously my capacity is reduced for this issue to be happening but if it can adjust to this then maybe it will work normally? It goes a day on a charge easily anyway. Rather not open it unless it's really bad.

No time for mine right now, setting up a brand new Huawei Mate 20 for my wife. She's going to Japan in a few weeks.

That's a nice phone....

I don't give a toss about the bootloader thing, her old OPPO was never unlocked or modded, this one doesn't need to be either.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
I think for mine, I will wait till I get a new work phone then flash B02, then B04 again. Seeing as my battery life is still impacted on B12, I may as well put it back on B04 which ran nice otherwise once the niggles were fixed. I'd like to see how it goes when updated from a cleanly reset B12 and B02 instead of updating them and retaining old data.

Then maybe buy a new battery and put it in. See what happens.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Time to consider where I go with mine, got a new SG S10e for work today.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Good for you. I actually use my axon 7 as spare phone only, my daily driver is LG V30, but I could not leave the dual speaker and dolby atmos A7 has.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
With my battery issue I asked work for a new phone and please not an iPhone but needs decent storage and camera as I use camera for work all the time.

I kind of expected they would get an S10e and it's likely the right choice for my needs. Setting it up.

Now I need to decide if I regress the A7 further than Nougat to root it, or just go back up to B04, probably just do B04. Really not fussed to be stuffing around with TWRP and all that jazz these days. Once done I'll put my own SIM back in it and the A7 mini becomes a spare.

As to the S10e, the Samsung UI is kind of annoying..... I'll get used to it but it makes me want to pick up the A7 instead. I'm posting this from the A7. There's something about it that's more than just the audio.

Even MiFavor UI in Nougat is easier to use but Oreo was nice and simple. There's so much bloat and crap in new phones. It will influence what I eventually get as my personal phone after the A7. A minimal skin or stock Android. No heavy UI skin. Likely cuts out Samsung and Huawei. Been spoilt by the minimalist Oreo on A7 and miss it.

The S10e has a big flaw, no notification LED. Instead, edge lighting. It doesn't sit there and keep flashing so will miss my notifications now......
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
I'm now using B04 slim version by Raysteff, even the battery not as good as pure stock but the random shutdown issue never happen again. But sometines some apps behave so weirdly slow to open and the other time as fast as normal
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
I'm going to be really honest here and say straight up, the S10e has a much better implementation of Dolby Atmos and with Poweramp, just works. Sounds great! Wouldn't miss the A7 for music except for the built in speakers but I rarely listen that way.

People are right about the A7 being a software mess.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Good to know that, dual speakers on S10e seem good also, but from what I read S10 differentiate the frequency, top speaker for higher sound frequency and bottom for the lower freq, but on Axon 7 it uses both speakers in full range

I don't know since I don't have s10 yet lol
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
The S10e sounds ok, better than a single speaker but not as good as the Axon 7. The bottom speaker is bottom facing so if you set the phone down in landscape it doesn't direct toward you properly. It's better in hand but you do still get an imbalance which prevents it being as immersive as the A7. Wouldn't be as good for movies.

On the plus side the screen is taller for a smallish body. Give and take.

Lawnchair Launcher makes the S10e a lot nicer to use than Sammy's launcher.

About to reset the A7 then go up to B02 and then B04. This time I start B04 fresh, no old data.

Edit, done, setting it up, wow it's lightning fast from fresh! Will see what shenanigans happen with the battery situation.
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
As long as I remember S9 has dual front facing speakers and will sound better than bottom firing one.

Gonna lock A7 my bootloader ti flhas fresh B04 also. I miss the battery life of this last build
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
Glad I went back to B04, it just runs better. Nougat wasn't great.

Been using the S10e mostly today, basically using it to get more familiar. It's great for music, GPS etc, call quality is excellent but to be truthfull, in general it's not really that much better than my Axon 7 to make me think I'd buy one myself with my own money, although the camera does seem a big upgrade even on the lower spec S10e compared to the A7 so a higher range S10 would be even better.
[ZTE Axon 7 Guides, News, & Discussion] RobboW:
It's a shame ZTE introduced a system bug in B04 because it does run better than on Nougat. I still get the weird issue with waking from sleep when battery is a bit low and it will shut down, yet can use it till it goes flat as long as it doesn't deep sleep.

Other than that B04 is quite good. They probably messed something up pretty bad in an XML power file :eek:
[ZTE Axon 7 Guides, News, & Discussion] YoungAll:
Is it only us who still use axon 7 here? Lol

The shutdown issue is gone for me but slow response on opening youtube & whatsapp is really weird, I have to wait untill force close notification appear then select wait to make it work... This is bad