Samsung one ui 3.1 update causing sim and wifi issues for A50? - Samsung Galaxy A50 Questions & Answers

Hi all,
Anyone facing issue of no sim card, unable to on wifi to connect to wifi after updating to one ui 3.1 update?
Don't even show up in PC when connected.
Issues occurred after you updated, switched off phone(not restart) and start up again.
I have 2 A50, purposely staggered the updates to see what happened, ended up both have the same issues.
1st one have to reset to factory settings to get it work again.
Anyone have any method without resetting, pls share.
Thanks in advance.

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Wifi issue after update

Hi all
yesterday my i9195 recieved an update to JDQ39.I9195XXUBMJ7 but since then WIFI refuses to work.
Contactting Samsung on twitter they say to backup and update by wifi, duhhh.
Trying by pc, KIES says : doesn't support software upgrade
Even KIES3 does
So now i'm lost to fix wifi issue
Luckily i run on private Phone my note 2
Thnx for helping
rayblo said:
Hi all
yesterday my i9195 recieved an update to JDQ39.I9195XXUBMJ7 but since then WIFI refuses to work.
Click to expand...
Click to collapse
I am experiencing the same issue, same phone and rom i9195 JDQ39.I9195XXUBMJ7. Wifi works after reboot for about 10 minutes and then stops responding. It may stay connected for a few hours after it stops working, but the phone can't send data over it.
I have wiped data/factory reset the phone to no avail.
I read somewhere about a few people with other devices on 4.2 having troubles with AES encryption on their routers. Might be somewhere for us to start troubleshooting. The other option is to just try downgrading to the previous version.

HTC One M8 Apps won't connect to wifi

I just bought this phone a couple days ago and it was working perfectly fine, I started downloading the updates, i eventually got to the 5.01 lollipop update and updated, I booted up and was excited to see the awesome android L features, sadly whenever I open any app (example kik, instagram, snapchat, or even google chrome) it will not connect to the internet, I used my data and it works fine, so I decided maybe it was just a bug so I did a factory reset and it still didn't fix it, so I unlocked the bootloader flashed a recovery and several custom roms which still did not fix the Wifi issue. I am stuck and don't know what to do at this point. Please help, thanks.
Hello. I have the same problem. I contacted HTC support and they admin it is software problem. Let me explain.
It is very stupid error. Some apps are working some not. But if you try to connect to diffrent WiFi access point it will work. I have problem with ZTE router and with him phone WiFi is not working . But with Cisco. Dlink unifi all is ok. HTC promised to release update to solve thug enconviance.
tomislav177 said:
Hello. I have the same problem. I contacted HTC support and they admin it is software problem. Let me explain.
It is very stupid error. Some apps are working some not. But if you try to connect to diffrent WiFi access point it will work. I have problem with ZTE router and with him phone WiFi is not working . But with Cisco. Dlink unifi all is ok. HTC promised to release update to solve thug enconviance.
Click to expand...
Click to collapse
any update on that? I am too using ZTE and half of apps are not working! I'm on ViperOne 5.0.2
HTC one m8 won,t connect to wifi
Hi
I,have the same problem and did some different solution but still the same problem please help.
thanks

No SIM and Wi-Fi dropping issues

- vs985 -
About 3 days ago my phone started to have Wi-Fi disconnecting issues. I formatted everything outside of external sd card and put back the same rom I had installed with no previous issues, xdabbeb's 47a rooted following instructions 100% as I had previously. Still, wifi issues where it will connect / disconnect. Rebooting the phone or turning on / off wifi or even bluetooth has no effect. Complete randomness seems to "fix" it but wifi will only stay on for a few minutes at a time. Multiple other devices on my same network have no issues. Still, rebooted and even factory reset the router just to be sure. No change.
Something I thought was an isolated issue, I had a "no sim" message a few months ago and Verizon replaced my sim card and the problem seemed to go away. Today though, while trying another reformat, I got the "no sim" card on the initial setup screen and before even finishing the setup via wifi, the wifi disconnected multiple times.
I'm thinking hardware is to blame especially since there were no apps installed to conflict with the os software.
I'm really not wanting a new phone, should I look to replace the motherboard? I can diy it np. Or, should I bite the bullet and buy a ::shutter:: new phone.
Orrrr... is there anything else I should try software wise?
So since having issues and formatting down to internal storage and reinstalling the stock rooted 46a kdz with no positive results, I flashed the 10b and attempted to take the OTA's. The OTA's failed for 10b so I flashed the 24b and was able to take all the OTA's. I'm on 47a right now and haven't had any wifi issues. I'm going to give it a few days of usage to see if it's "fixed." Afterwards though, I plan to go back to the stock rooted 46a so I can use my rooted apps like titanium and hopefully find the issue still fixed. I do know there is a kingroot option for stock 47a, but I also find a lot of negativity about it's communication with sensitive data and installing apps behind the scene so I'd rather not go that route.
I'll keep updating in case anyone else has similar issues.

Device forgets all saved WiFi passwords when toggling it off and on again

Hello guys!
I have weird problem!
I got broken OP3 A3003 (64gb model) and repaired it. It works perfectly but there is just one annoying fault that i cant seem to find answer to. The WiFi will not reconnect to saved hotspots after i toggle it off and back on again. Everytime i must give the password again and again. after i connect it works perfectly an no hiccups at all. just the reconnecting not working. I can see the saved network in the list but deleting it does not work. I havent yet rooted, im on latest stock and the bootloader is locked. Tried factory reset but same problem occurs.
Searching web and Oneplus forums pointed that there is couple others having same problems but no solution from anyone.
Do anyone have had any of this kind of problem and how did you solve it?
I like Oxygen OS itself but rooting is a must! after i can give logs or stuff if needed!
Update to latest oxygen os or open beta, if updating won't fix your problem then perform a factory reset.
Like I said I tried factory reset but did not help unfortunately I updated to open beta 38 last night but did not help either. 'm gonna try open bootloader and flash the firmware again completely and see.

Mobile Radio Power Not Staying on

Hi all,
So today I was updating Havoc OS to the latest build on my OnePlus 3, everything went well but it was only later when I either made of received a phone call, I would notice my network signal on both my SIM cards would disconnect then reconnect some time later.
Ive tried rolling back to the previous version I was on and still receiving the same problem.
Ive also tried stock Oxygen OS, Lineage 16 and Resurrection Remix all with the same result.
Just to check to be sure, I removed the back panel and cleaned all the antenna connections and same result.
Ive been into the phone information screen (*#*#4636#*#*) and tried manually turning on and off the radio power and still no joy.
Ive also put both the SIM card into another Duel SIM phone and there working fine.
If anyone has had some sort of experience with this sort of situation, your help would be greatly appreciated. :good:
Did you ever fix this issue?

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