4G not working since Pie update - Samsung Galaxy A7 (2018) Questions & Answers

Hello guys, I own a not branded a7 and I live in Italy. Earlier last week, the new update came out and I installed it without issues.
Since then, 4G doesn't seem to work.
The only thing I haven't tried yet is a hard reset which I would like to avoid.
Has anyone else experienced the same?

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[Q] No 3G?

Hey fellow Nexus S users.
I Would like to get some help from you out there!
Some days ago i decided to get an internet subscription from my carrier (Telenor) and it got activated today. The thing is that it seems there is no 3G signal which is essential for going online. The strange thing is , that we got the same subscription on my mothers , kinda old Nokia phone, and she has 3G and we live in the same house.
I started to suspect there was something wrong with my Gingerbread so reinstallted the stock 2.3.4 ROM form xda. Still nothing. Did a hard reset, still nothing.
Could it be a hardware failure? ( God I hope not :/ )
Anyone else experiencing the same problem?
By the way its the i9023 GRJ22 version.
Best wishes
Khemist
EDIT: Also, is there any way to force the phone to use 3G insted of GSM or something?

No 4G after 4.0.4 update, T-Mobile

Called T-Mobile up, it is a software bug that HTC is actively working on. In the mean time, I have NO 3G/4G. I'm stuck on GSM 2G. :/
They coughed up the data portion of my bill, which was nice. Is there any way to fix it in the meantime?
I get 4G fine!
Sent from my HTC VLE_U using xda app-developers app
Same here. Not getting 4G. Seems like quite a few is experiencing it. Look at the Tmobile support forums for HTC one S.
Flash a custom Rom, get 4g back. At the very least I would root and take a look at the build.prop settings, might be something simple in there. If you'd like, upload your build.prop file so we can check out out
Sent from my HTC One S using xda app-developers app
pritz786 said:
Same here. Not getting 4G. Seems like quite a few is experiencing it. Look at the Tmobile support forums for HTC one S.
Click to expand...
Click to collapse
I'm going to attempt to run the RUU to go back, but I doubt it will work since I'm downgrading. :/
tgtoys said:
Flash a custom Rom, get 4g back. At the very least I would root and take a look at the build.prop settings, might be something simple in there. If you'd like, upload your build.prop file so we can check out out
Sent from my HTC One S using xda app-developers app
Click to expand...
Click to collapse
Would I still be able to revert back to stock rom jus incase I have to return it.
Well... now that I can't downgrade via RUU... :/
Alright, I can't take it anymore. CM10 didn't fix the issue AT ALL. I am stuck on Edge no matter what ROM I'm on.
Here is the thread on T-Mobile's forums about the problem
support.t-mobile.com/thread/33209?tstart=0 (I'm a new user here, can't post links, you'll have to cut and paste)
The problem appears to be specific to certain phones. I tried my SIM card in a demo phone at the T-Mobile store and we updated their phone to the latest version while I was there and it did not have a problem connecting to the 4G network.
I checked the software versions on their phone vs. mine and they all match.
This update contains a new HBOOT and radio update. Because of the HBOOT update, there is no way to roll back to a previous version. I am guessing that the problem is with the radio update since custom roms do not appear to fix the problem. Because of the new HBOOT, there doesn't appear to be a way to downgrade the radio either.
I contacted HTC and they were no help. They told me they were aware of the problem and were working on it, but had no ETA for a fix. T-Mobile told me they were unable to exchange the phone since there is no guarantee the new phone won't have the same problem.
The problem is a hardware issue with the one s.
Turns out a chip is fried affecting your 4g.
Even after installing another Rom, it won't fix your problem.
Happened to me and I got mine replaced.
It's not specific to the 4.0.4 update. It affects non upgraded phones as well.
If your not getting 4g then you got a bad phone.
dellenrules said:
The problem is a hardware issue with the one s.
Turns out a chip is fried affecting your 4g.
Even after installing another Rom, it won't fix your problem.
Happened to me and I got mine replaced.
It's not specific to the 4.0.4 update. It affects non upgraded phones as well.
If your not getting 4g then you got a bad phone.
Click to expand...
Click to collapse
I was getting 4G fine right before the update. Right after the update, no 4G. Others have had the exact same problem caused by the update. T-Mobile says it is a problem with the update affecting certain handsets. HTC says it is a problem with the update affecting certain handsets.
Are you saying the process of applying the update is frying certain handsets since the problem is only showing up by applying the update?
There is no 4g for the one S because the chipset does not support 4g.
If I helped in any way please hit thanks
I happened to encounter this issue. But my handset was defective because it was brand new and I'm stuck on 2g. I am waiting on a replacement phone. I literally just had it delivered today and it sucks having this problem right out of the box.
Digitoxin said:
I was getting 4G fine right before the update. Right after the update, no 4G. Others have had the exact same problem caused by the update. T-Mobile says it is a problem with the update affecting certain handsets. HTC says it is a problem with the update affecting certain handsets.
Are you saying the process of applying the update is frying certain handsets since the problem is only showing up by applying the update?
Click to expand...
Click to collapse
That is how mine was. My phone got "4G" (HSPA+) before the update, no luck after the update.
Same problem here with 4. 0.4. Went to CM10 and got 4G again. My MMS doesn't work though
I actually had this happen on the phone I bought directly from my local T-Mobile store last Friday (10/05). I went back in the next day after discovering the thread on the T-Mobile support forums, and they exchanged the phone for me in-store, there on the spot. I have perfectly functioning 4G now, but I'm terrified to run the update for fear of it happening again.
Does any one know if there's any kind of data specifying a certain production run of phones, or anything of that nature?
CrayzyBoy said:
There is no 4g for the one S because the chipset does not support 4g.
If I helped in any way please hit thanks
Click to expand...
Click to collapse
Are you retarded?
trmacdonal that is not very nice.
And not really in any way helpful.
According to the most recent post in the T-Mobile support thread, HTC is aware of the issue, has no idea what is causing it, and has no ETA for a fix. Glad I went and got another phone when I did, but I'm fairly miffed that I can't update without fear of turning my smartphone in a, well... phone.
Interesting that this happens only after the 4.0.4 update. I'd like to keep my fast connection; is there a way to keep the phone from downloading and applying the update?
I had a similar issue with my HTC G2 two years ago. HSPA icon appeared, but only one arrow would flash; no connectivity. I could connect to the Internet only using 2G and WiFi. Some devices had the issue, others did not. It lasted for about a month or two, then the issue magically disappeared. Perhaps they rolled updates when the problem occurred and resolved, I'm not sure. If I disabled WiFi on the G2, sometimes the HSPA would connect; there seemed to be an issue switching from WiFi to HSPA. Unfortunately, it sounds like the One S has a slightly different issue. I'll continue to monitor this thread and the one at support.t-mo.

[Q] Restricted Access Change notification

I just upgraded to the latest stable CM10 rom, including properly flashing boot.img, on my AT&T One X with the latest Hboot. Things have been working fine for the last couple days. Yesterday LTE went live for my city so I didn't have data until I set my Access Point Name to AT&T LTE. Things were great until this afternoon. I've noticed a "Restricted Access Change" notification intermittently, and for a little bit I can't use voice. It comes back on its own.
Is anyone else having this problem, or know how to fix it? Thanks.
When LTE first rolled out here in Portlandid get the same message however, I could still make voice call.... Haven't gotten that prompt in a few weeks but also it didn't cause me any interruptions.. hth.. XOXO.
posted from my Motorola startac...
Thanks for the info. I haven't seen it since yesterday afternoon and all's been well. Fingers crossed.

Getting frequent kernal crashes the last couple of days

Wanted to see if anyone else has been experiencing the same thing.
I've got a T-Mobile variant S8+ which I switched over to Verizon, currently rooted via SamPWND and running unlocked firmware for 2 months or so now. Everything has been perfect up until 2-3 days ago when I would look down and the phone would be on a factory reset styled crash screen. It would run a series of tests and say there was a kernal error, most of the time dealing with the modem, which I would then have to restart the phone without issues and carry on.
Is there any way to test or check what the issue is all of a sudden, or a direction I should go to update to a newer firmware while still retaining root. On baseband G955U1UEU1AQG2, kernal 4.4.16 (dated Mar 26), Build NRD90M.G955U1UEU1AQG2. SW Service provider SAOMC_SM-G955U_OYN_VZW_0177, VZW/VZW/TMB.

Mobile data issues since last update

So, since I installed 10.3.2.0 OTA update a few days ago; mobile data works only on 4G.
Can't figure out how to solve this and it's an issue for me since I often go to remote places without 4G coverage.
Anyone having the same problem?.... or a solution? :fingers-crossed:

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