P9 Plus unable to turn on wifi randomly - Huawei P9 Plus Questions & Answers

My P9 Plus wont turn on WIFI and its pretty random but turning the phone off (by holding the power button) and turning it back on fixes the problem until it occurs again, is this a sign of a hardware failure or I just need to perform a factory reset?
When I switch WIFI on its animation gets stuck on turn wifi on and off animation loop

You're thread title states "unable to turn on", while your thread post states "won't turn off", so it's a bit confusing.
The latter started happening to me recently - I thought because I had dropped the phone (from a low height) just before it started happening. Are you also finding no Wi-Fi networks available when this happens &/or unable to scan for them?
Anyway, reboot into Recovery mode & wipe the cache partition only (do NOT 'Wipe data/factory reset' for now).
How to enter P9 Plus Recovery mode (if required): https://www.recovery-mode.com/android/huawei-p9-plus.html

Sorry, I did not notice the typo. I am not able to scan for networks as the animation is stuck on a turn on off loop but after a reboot it runs fine. Ill try clearing cache before a factory reset

Its been doing okay so far, i cleared the cache and also disabled wifi scanning

I have the same issue here. In my case, I suspect the update of my phone (VIE-L09 C432 B384) to be the problem. This update installed one or 2 days before this and since now I have this issue.
I performed a factory reset, still have the issue.
Other things going on here (before factory reset):
- Battery drained when doing nothing within 5 hours
- Wifi suddenly stops functioning, no way to turn it off or on (shows on, but no wifi devices visible)
- Can't see the battery history (doesn't open until a reboot has been forced and shows a gap in the graph after reboot)
- Can't restart the phone in a proper way after wifi is defective (unless i press the button for 10 seconds)
- Sudden restarts of the UI.
I could fix the sudden battery drop by doing a factory reset, so probably somewhere i had some config errors.
however, the rest is still an issue on the phone. The restarts still happen, battery history is still unable to read out, the wifi suddenly stops and cant restart the phone.
(haven't had a restart, wifi crash or battery fail after I changed the setting "keep wifi on when in sleep" to "always", can be a hint of where the problem resides)
I'm thinking of a firmware/software downgrade to resolve this issue.

hay me to on L29C185B391 & B392
ANY IDEA TO solve prob not in 5.0.1 only update after 5.0.3

https://forum.xda-developers.com/p9/help/phone-suddenly-looses-wifi-connection-t3789296/page4
Fix it?

Mine just does not turn wifi on, if I leave it connected the entire day there is no issue. I cleared cache and disabled wifi scanning and it got fixed. I didnt bother to future out which of the 2 did the trick. But thanks for the heads up on that post too.

I have same issues WiFi battery drain not restart . Then I think may phone hardware problem but than I installed Google play service beta version all problem is solved.
And I love again my phone.!?

Related

Radio (GSM + WLAN) can't activate after update

Hi
Diamnond 1.35.XXX with some blocking issues.
I made an update to 1.37. But after update is complete and the phone starts installing software appears a video demostration of Touch 3d interface. After 2 minutes video blocks and only after restarting the htc (by taking battery out), phone is ''coming to life'' but I can activate WLAN and GSM! Airplane Mode is OFF.
The phone is very very slow and of course I can't make or receive phone calls.
In File Explorer I can't see Internal Storage !
Do you have any idee what might damage phone?
Have you tried to flash it again? Or after the flash to make a hard reset again?
I don't know why but after a hard reset it happened to me too once that some processes were crashing... just doing a new hard reset solved the issue.
I made a Clear Storage (hard reset) but after that nothing happens.
I made another flash 1.37.XXX and after calibrating screen i have to set date and hour. When I click minutes screen freezes again!!!! and i can't go further !
MicropError when installing applications for first use (after flash)__
I can't activate WLAn and phone starts with Bluetooth activated. If I want to deactivate, HTC activate Airplane Mode !

BootLoop with time/date loss

Hi guys. I have an issue which now happens too often to ignore. I have two batteries and sometimes when I turn phone to change them it will boot loop/ get stuck on Samsung i7000 Logo. To solve this I used to boot into recovery do a back up -> full wipe -> start phone to see if it works -> recovery -> restore. Restore package would have a strange name 2000-01-01.00.00.15 - so phone also loose current date and time settings.
I thought it was ROM issue so I did clean install of a ROM I never had issues with before but it now does the same thimg. So it must be a problem that goes deeper then just ROM re-install. Can someone advise how to fix it? Or how to do a proper Hiroshima-Nagasaki wipe that will wipe everything to bare semiconductors and new re-install.
Thanks
just go to sammy service shop and have them change cmos battery on your Note mainboard
Cmos battery - most likely. Taking main battery out even for 2 sec resuls in loss of time and date. I use network automatic time so it sets within few secs after turning the phone back on. But for the first few seconds shows 00:00.
Dont see how it can be linked to my bootloop problem. Must be 2 separete issues then.

Bluetooth will not turn on (enable Timeout)

When turning on Bluetooth the toggle slides over for 10 seconds or so (still greyed out) before sliding back to off (the Bluetooth never actually comes on). It started yesterday out of the blue. At the time it started, I was running 6.0.0 (MRA58K) and had been for several weeks without an issue. Reboots don't fix it. Safe mode doesn't fix it. Wipe Bluetooth cache/data doesn't fix it. As part of my attempts to get it working, I upgraded to MRA58N. Then a round of trying all the above stuff all over again. Still no go.
I attached a log of an attempt to enable Bluetooth (trimmed). I waited until 0149 before I hit the toggle to turn it on and the log is from that point on. The point I see the obvious failure is 01:49:18.131 with the error message "Error enabling Bluetooth (enable timeout)" but I can't make enough out from the rest of the log to figure out why it's timing out.
Experiencing same issue on my Nexus 6. Worked fine for several days after upgrading to MRA58K. Then it quit. Same BT toggle symptom you described. Just did the OTA to MRA58N this morning. Tried reboot/safe mode/wiping BT cache and data. Still no workie.
I know none of this is really very helpful to you, but just wanted you to know you aren't the only one with this problem.
I ended up having to do a full wipe and re-install to fix it.
I'm having the same problem for weeks.
I tried for days to straighten it out. Uninstalled apps one by one and rebooted until I'd uninstalled everything, dug through logs, and did everything I could think of and nothing works. The silver lining was that wiping it and re-installing fixed it so it wasn't a problem with the hardware. I don't know if it was a bug or a glitch but I couldn't resolve it without a reinstall. Been over two weeks and I haven't had a problem since.
I had a similar problem, except Bluetooth wouldn't connect nor would it connect to anything. Toggle would act as though it turned off or connected, but 20-30 sec later, it'd go back to on and disconnected. A simple reboot fixed it for me, and this was on Lollipop a few months ago.
Sent from my Nexus 6

HTC one M7: Wifi "broken" + Rebooting when goin to sleep mode

Hey guys,
I have a htc one m7 which cannot turn on wifi (says error eventually) and keeps rebooting when entering sleep mode.
I already flashed the latest RUU I could fine and the flash seems to actually go through with one little hickup:
The command prompt finishes alright but on the phone itself the flashing progress bar gets stuck at around 90%. The phone turns on fine when I force a reboot after this but wifi wont and that reboots also remain.
Do you think this is a hardware issue? I'd say so but not 100% sure. Or any ideas how to fix it software wise?
And do you think I could stop it from rebooting by removing / turning off wifi completely? Aka removing the corresponding binary files like wpa_supplicant etc?
Have you heard of behaviour like this before?
ADD: suddenly wifi works and the reboots stopped.. didnt do anything.. so i guess its actually some hardware issue that might come back.

Urgent help needed: Phone reboots continuosly after setup

I am currently experiencing continuous reboot on my Single Sim Z3+ phone on .253 firmware. It used to be ok but about a week ago I started experiencing this problem as soon as I reboot the phone after setting it up from a fresh install with full wipe. It seems to work normal on earlier builds like 28.0.A.8.266 so only happens on 32.1.A.1.185; 32.2.A.0.224 - .253. I repeat, I have done fresh install with Full wipe several times but problem still exists. Urgent help needed.
Thanks
yawo76 said:
I am currently experiencing continuous reboot on my Single Sim Z3+ phone on .253 firmware. It used to be ok but about a week ago I started experiencing this problem as soon as I reboot the phone after setting it up from a fresh install with full wipe. It seems to work normal on earlier builds like 28.0.A.8.266 so only happens on 32.1.A.1.185; 32.2.A.0.224 - .253. I repeat, I have done fresh install with Full wipe several times but problem still exists. Urgent help needed.
Thanks
Click to expand...
Click to collapse
Hello yawo76,
I have the same device, and I had the same problem, what I did is the next:
With flashtool, download the stock firmware via xperia firm on the same tool (I have successful with E6553_32.2.A.0.253_1295-0156_R6C), after that, in the options, be sure that the MiscTA Exclude options are check, that's the clue. After that complete the setup menu, and try again.
Regards! and sorry for my horrible english.
I do have the same issue. I have Z3+ Dual. Random reboot and/or sleep of death.
What I saw from other posts about hardware issue (no other proof), is about the NFC antenna. But I tried and nothing changed.
I have my phone fresh ROM .253 MM installed and click all the way to home screen and let it sit. Well, nothing happened for many hours 5-6hr. Almost every other hardware functions off. However, once I turned on WIFI, something happened. Blank screen and 3 red LED blinks to reboot. A few moments later at home screen.
Soon, sleep of death (SOD). It is like, when the phone is standby (black screen sleep), when I pushed power button to wake the phone, it won't turn screen on. Like it's hang or something. No choice but to hard reset so that I could turn back on.
Then, I played with WIFI setting and saw a "Keep Wifi On during Sleep". I switched to "never" and tried let it sit again. I found out problem was gone for 10 hours (this is best record now, usually 2-3 hours, reboot happened).
I am still monitoring.
Wish you can try and confirm this.
I ran many tests about this issue. Found out it was the material of board or CPU or power which was not made strong enough. I tried tuning the CPU a little (just like PC of CPU tuning). So that it will not cause SOD, random reboot issue. It was also adjusted such that the battery saves much and prolong the usage of the phone.
With sitting of standby the phone is not running warm. Messages or phone calls will not delay in receiving. Plus, it draws about 2% of juice during standby of 6-8 hours.
Worth the try.

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