SM-G955U no service after march update - Samsung Galaxy S8 Questions and Answers

Hello,
On March 28th of 2020 i installed the update and since then i have no service and X instead of bars.
Things that i tried:
1. Tried the sim card on other phone and sim card works just fine. Tried diff sim card no luck
2. Reset networks (no luck)
3.Airplane mode on and off. Airplane mode on restart and off no luck.
4.Log in in safe mode no luck
5.When go into mobile networks-network operators-search now(error while searching for networks)select automatically(unable to connect try later)
6.Factory reset no luck
7.Roll back firmware to February update no luck
Roll back firmware to February and update again to March no luck
Roll back firmware to August no luck
Wifi calling and texting works and says Tmobile Wifi calling
I been trying to fix this since the 28th
PLEASE HELP ME

Related

[UAE] No Signal in Phone

Hi,
I had updated my S8 device to the newer update G950FXXU1AQJ5 in my device [SM-G950FD]. But after the update, my phone ain't receiving any signal. The phone is detecting sim card and micro SD but ain't getting the mobile network. What to do? I had even flashed firmware again still the problem exists. Please suggest a way to overturn this problem.
P.S.: Sim is of UAE only. Even *#*#4636#*#* is not working.
Hello! I am having the same problem here in Saudi Arabia, it randomly disappears. Did you find a fix?
Try reset apn settings

New update: G955USQS2BQL1

12/27/2017
Sent from my SM-G955U using Tapatalk
Yep, came here to post about it, but saw your thread. I got it around 4:45 this morning, installed without a hitch in about 15 minutes. It's the December 1st Android security patch.
any chance there is a link to download it that wont take me over 12 hours?
Cellular is totally messed up with this. Can't get either (Boom Mobile or Xfinity) sim I have to work properly and I have no way to factory reset the phone (option is greyed out and doesn't work through recovery either).
catnapped said:
Cellular is totally messed up with this. Can't get either (Boom Mobile or Xfinity) sim I have to work properly and I have no way to factory reset the phone (option is greyed out and doesn't work through recovery either).
Click to expand...
Click to collapse
The update works with Total Wireless & Tracfone SIMs.

Nokia 6(TA-1000) cellular network not work after Android Oreo

I just upgrade my Nokia 6(TA-1000) to official Android 8.0.0 (Oreo).
Then my Cellular network won't work anymore.
I live in Hong Kong, using sim card service "CMHK".
I think it is LTE/WCDMA mode.
Tried "*#*#4636#*#*" and changing the settings.
But the connection always shown IPv4: Failed(2)
The phone notification show it is connected and running 3G network.
But the upload/download speed is always 0KB/s.
Reset to factory setting already.
Before upgrade Android everything work fine.
Anyone have the same problems?
Now, what can i do....?
It seems I can't even downgrade my Android.
Only, have to wait for next update and hope it will fixed?
I think i am screwed.
Alvin Fung said:
I just upgrade my Nokia 6(TA-1000) to official Android 8.0.0 (Oreo).
Then my Cellular network won't work anymore.
I live in Hong Kong, using sim card service "CMHK".
I think it is LTE/WCDMA mode.
Tried "*#*#4636#*#*" and changing the settings.
But the connection always shown IPv4: Failed(2)
The phone notification show it is connected and running 3G network.
But the upload/download speed is always 0KB/s.
Reset to factory setting already.
Before upgrade Android everything work fine.
Anyone have the same problems?
Now, what can i do....?
It seems I can't even downgrade my Android.
Only, have to wait for next update and hope it will fixed?
I think i am screwed.
Click to expand...
Click to collapse
Why dont you hard reset your device, this could help you
Hard reset is done by recovery menu.
Hope this couls work for you
sltushar said:
Why dont you hard reset your device, this could help you
Hard reset is done by recovery menu.
Hope this couls work for you
Click to expand...
Click to collapse
I already do factory reset on System Settings.
I think it is the same as reset on recovery menu.
It still Android 8.0.0 and problem still exists.
Alvin Fung said:
I already do factory reset on System Settings.
I think it is the same as reset on recovery menu.
It still Android 8.0.0 and problem still exists.
Click to expand...
Click to collapse
No, there is a lot difference between system reset(soft reset) and recovery reset (hard reset)
Try it, may be it solve your problem
sltushar said:
No, there is a lot difference between system reset(soft reset) and recovery reset (hard reset)
Try it, may be it solve your problem
Click to expand...
Click to collapse
Tried. No luck, the problem still exists.
It seems you ****ed up modem firmware. What's the baseband version and build number from About?
Alvin Fung said:
I just upgrade my Nokia 6(TA-1000) to official Android 8.0.0 (Oreo).
Then my Cellular network won't work anymore.
I live in Hong Kong, using sim card service "CMHK".
I think it is LTE/WCDMA mode.
Tried "*#*#4636#*#*" and changing the settings.
But the connection always shown IPv4: Failed(2)
The phone notification show it is connected and running 3G network.
But the upload/download speed is always 0KB/s.
Reset to factory setting already.
Before upgrade Android everything work fine.
Anyone have the same problems?
Now, what can i do....?
It seems I can't even downgrade my Android.
Only, have to wait for next update and hope it will fixed?
I think i am screwed.
Click to expand...
Click to collapse
Have you tried other SIM cards, whether you work in your cell phone! Tried to register your network operator service in the settings! Set preferred network ~
---------- Post added at 11:04 AM ---------- Previous post was at 10:57 AM ----------
Have you tried other SIM cards, whether you work in your cell phone! Tried to register your network operator service in the settings! Set preferred network ~
qwertysmerty said:
It seems you ****ed up modem firmware. What's the baseband version and build number from About?
Click to expand...
Click to collapse
I use official update.
All firmware should be correct?
BTW, I get a new sim card from ISP but cellular network still not working.
Also, tried both sim card slot 1 and slot 2 nothing work.
May be new system not compatible with my SIM card service only which is "CMHK" aka "中國移動香港".
Hope next update will fix that...
Device name:
Nokia 6
Model
TA-1000
Android version
8.0.0
Android security patch level
January 1, 2018
Baseband version
MPSS.JO.3.0-00387-8937_GENNS_PACK-1.124813.1.126605.3
Kernel version
3.1.8.66-perf
Fri Jan 12 19:48:46 CST 2018
Camera firmware version
V100.0230.05
V010.0210.10
Touch panel firmware version
ilitek-V10010
Goodix-v1.05.29-HV
Build number
00CN_5_210
Baseband version looks good. I was just wonder if your ta-1000 ever had ta-1003 firmware installed. Don't know what's wrong with radio on your phone, sorry.
I have same problem in my Nokia 6 TA1003 after upgraded to 8.0
The CMHK sim in sim 2 slot the cellular network can work. sim 1 slot install other ISP sim card is no problem.
Just put the CMHK in sim 1 slot only run 3G voice services and cellular network not work.
NOKIA 6
hi,
i updated my nokia 6 TA-1000 to oreo update.
i faced many issues like lte not working.
in battery saver mode launcher is stopping suddenly.
it is not detecting the sim correctly.
i didnt get network signals correctly.
Then i tried to hard reset my mobile ,after complete reset and after rebooting it stopped at language selection,i clicked lets go many times but it is not working .it got stucked there.
is there anyway to get rid of it.i asked for nokia chat support but they are asking me to take mobile to nearest service center.
if there is any solution please guide me with it .thank you in advance.
I just turn off the cellular network yesterday.
After I wake up from bed, my phone Google service can not connect from wifi(can't use email, Google store).
BUT! After reinsert my sim card and turn back on cellular network, everything working now.
Both 4G cellular and Google service all good.
May be some part of the network is cached.
So, if you encounter this problem just turn off cellular network and wait.
BenSo2111 said:
I have same problem in my Nokia 6 TA1003 after upgraded to 8.0
The CMHK sim in sim 2 slot the cellular network can work. sim 1 slot install other ISP sim card is no problem.
Just put the CMHK in sim 1 slot only run 3G voice services and cellular network not work.
Click to expand...
Click to collapse
It seems that, the old slot 1 cached your sim card.
So, you change to slot 2 work, but you can't use SD card.
And I found that if you wait a long time the cache will clear.
You can try to insert sim card back to slot 1 after 1-2 days.
gamez cliq said:
hi,
i updated my nokia 6 TA-1000 to oreo update.
i faced many issues like lte not working.
in battery saver mode launcher is stopping suddenly.
it is not detecting the sim correctly.
i didnt get network signals correctly.
Then i tried to hard reset my mobile ,after complete reset and after rebooting it stopped at language selection,i clicked lets go many times but it is not working .it got stucked there.
is there anyway to get rid of it.i asked for nokia chat support but they are asking me to take mobile to nearest service center.
if there is any solution please guide me with it .thank you in advance.
Click to expand...
Click to collapse
The only option was left to flash stock firmware, but as it updated to oreo, its bootloader has also been updated so I will suggest you to wait for official oreo firmware to release, please don't try to downgrade your device for now, it can brick your device very badly, keep patience, if any solution will come out, we will definitely tell you
Sim detecting issues of Nokia 6
Have you got it fixed now?
I'm also having the same problem, and tell me how did you do it?
Nevklear said:
Have you got it fixed now?
I'm also having the same problem, and tell me how did you do it?
Click to expand...
Click to collapse
Yes, I got it fixed...
1) Just turn off your cellular network.
2) Wait for 1-2 days.
3) Turn on your cellular network again, it should work.
How can I off cellular network. Will keeping it in flight mode helps?
Alvin Fung said:
Yes, I got it fixed...
1) Just turn off your cellular network.
2) Wait for 1-2 days.
3) Turn on your cellular network again, it should work.
Click to expand...
Click to collapse
Thank you for raising this question. My phone got the same problem. I am just wondering if I should send it to maintenance center but I guess they will just do reset.
And by saying "turn off cellular network and wait for 1-2 days", do you mean by just turning off the data usage, or turning it to flight mode/ turning the phone.
Nevklear said:
Have you got it fixed now?
I'm also having the same problem, and tell me how did you do it?
Click to expand...
Click to collapse
I just read a comment from a forum in HK and some members find a way to fix the problem. I tried it and it is successful.
{lihkg.com/thread/544787/page/1?ref=web&post=20}
i face same problem .. Nokia care told me that your phone motherboard problem

play store issue after 8.1 update

Anyone having and issue with the playstore and Google drive not downloading apps or files? Was all fine till I updated from beta to official Oreo. I did the OTA update should I have sideloaded instead?
factory reset fixed the issue but now I've lost lte on straight talk verizon........
I'm having lte problems to after the update .I have Verizon it comes and goes .If i turn off wifi i get the Lte icon back.
Changed my preferred network type to global took out my sim restared phone and put it back in and it stuck got lte plus and volte working finally no issues
Clearing app data fixed it here

MI_A1 Network Issue

i am facing a big problem with Carrier network & Volte
Reasons for issue..
i was using Android 8.1 November security patch.
Surprised after releasing Android Pie. then decided to install even not released for India. then installed ussing method of VPN method (Psipon VPN-Netherland Server).
After updated to Pie.. Lost Volte
then decided to go back to Oreo
Downgraded to Oreo march-2018 security patch using Mi-Flash
Lost netowrk and IMEI
Connected to wifi and got OTA update to November Security patch update,,, After installing rebooted the device and was facing bootloop problem..
Went to MI-Service centre he was tried but same bootloop issue then he returned the mobile.
Finally connected to PC by using Test point method Flashed the Oreo march-2018 security patch using Mi-Flash.
Got IMEI back, Inserted sim cards but no Network. Only one sim working which is Airtel in slot 2.
When i insert two sim cards (Jio & Airtel) showing No service..
Now System update showing (November-18 Security). i am scaring to install it as it goes to bootloop again.
Please solve my problem to get my device to normal stage (Oreo 8.1 Nov-18 Security update) with working networks.
Sorry for bad english. i hope you understood.

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