S7 Edge G935W8 No Network - Samsung Galaxy S7 Edge Questions and Answers

Hello Everyone
I have been using my S7 edge for the past two years without any problems. However a week ago I dropped my phone and then problems started. At times the capacitive touch buttons (back and recent apps) would not work. There is no response at all then after some time it would again work. Now it has stopped working completely. Secondly I experienced network signals drop for 3 4 hours and then everything worked fine but now it has been 5 days since my mobile signals have gone completely. When I manually search for mobile network, it doesn't even show my network. It's like the frequency band has completely vanished. Is it hardware or software issue? Plus my phone charges slowly now and keep on getting hot.
Any suggestions please.
Thanks

dr_phd1 said:
Hello Everyone
I have been using my S7 edge for the past two years without any problems. However a week ago I dropped my phone and then problems started. At times the capacitive touch buttons (back and recent apps) would not work. There is no response at all then after some time it would again work. Now it has stopped working completely. Secondly I experienced network signals drop for 3 4 hours and then everything worked fine but now it has been 5 days since my mobile signals have gone completely. When I manually search for mobile network, it doesn't even show my network. It's like the frequency band has completely vanished. Is it hardware or software issue? Plus my phone charges slowly now and keep on getting hot.
Any suggestions please.
Thanks
Click to expand...
Click to collapse
You may want to remove the back and check for loose connections. Depending on your particular skill set and available tools, it's not that difficult a process.
https://www.ifixit.com/Teardown/Samsung+Galaxy+S7+Edge+Teardown/56845

Related

My touch hd keeps dropping calls

Hey,
Has anyone else had problems with their HD suddenly cutting of calls even though there is good network coverage? I can have 5 bars of network on the phone, receive a phonecall, talk for a while, then suddenly have the bars drop to 0 and the call being ended. It's getting really annoying at this point.
Also I think the speed of the surfing through network (gprs/edge/hsdpa) has slowed down; it feels as if it doesn't really establish a great connection with the network.
Please tell me you've had this problem and that it's a software issue that is fixable!
Its your 3g network that is dropping calls. I have same problem.
Go to settings, phone and then choose the band tab. Change network from Auto to GSM.
Solves all problems.
I have poor 3g in my home. At home I use gsm mode and when i go back out i switch to auto - 3g mode.
Or it might be because of an old SIM card. If you had yours for a couple of years for example, it might be time to ask for a new one.
i've actually had my sim card for ages, gonna try to order a new one and see if that solves it, thanks for the tip
Let us know!
got the HD and it droped calls all the time. My SIM-card was 5 years old. after changing it worked a lot better but not 100%. Solved that after disabling 3g (bad 3g rec at home), now it works as it should no more dropped calls.
You know.. it would be ideal to have an app that could be assigned to a button press that switches the 3g on and off without needing to go into settings all the time.
I don't use the 3g stuff all that often (mostly wifi) and gsm is fine for sending texts and making calls. Not so sire about mms though.
To be alle to switch it on and off would be ideal and could be used in conjunction with other software to schedule locations or times that would auto switch.
Anyone know of any thing?
i have got the same problem. I have sent my hd to manufacture on warranty. I still waiting on my phone, i let you know what is going on when it will be back to me.
P.S.
sorry about my english
Desperate
Hello to all,
I am having completly same issue with my touch hd.
Expierincing line drops, other side hear me badly or not at all. I tried to update radio roms to 1.09.25.35 and 1.10.25.25 , but ittis the same. Also tried updating ROM to DUTTY HD 1.7.,but it was the same. My network is MTS in Serbia.
Than, I changed finding netwotk to manual, and type of band to GSM (900+1800) UMTS (2100), same result . It looks that this helps a litlle, since I expierence less drops, but I am still unavliable sometimes. Also since my gsm card is 7 years old, I was adviced to change it what I did as well.
This brought even more results, but today, after 5 days of good work in one place (with good reception of 3G) I travell to another city, and you may guess, It started happen again.
All the way phone was loosing signal, calls were droping or even I was unable to make any calls as well.
I am so desperate, and will have to return it to a dealer, although it was my last option...
My was the same problem but it was fix
After I installed couples of upgrade my HD from HTC website and I recieved too many drop call so I uninstalled all the Hot fix . Now every work back to the normal way
Tried that as well, made 2 times hard reset, but no help.
Anyway I had only ine hotfix installed the one for keyboard lag.
I had imprssion in the begining that my problems started with new connection manager database (hotfix that was automaticly installed), but after hard reset everything repeated, so that was not the case....
Same problem here! Total nightmare, is there any possible fix for this or is it just poor quality gsm bits in the phone? Mine picks up such lower signal than any other phone ive had
Ryanmt said:
Same problem here! Total nightmare, is there any possible fix for this or is it just poor quality gsm bits in the phone? Mine picks up such lower signal than any other phone ive had
Click to expand...
Click to collapse
Ryanmt, It looks that GSM module sucks...Everything else is superb, but, after all this is a phone, isn't it?
I reversed to original ROM (403 WWE), and RADIO ROM (1.09.25.14), removed HardSPL, and now waiting for asome bright idea to try...
I give myself 7 days before waranty claim...
CORRECTION: I left mine HD for warantty today (11.02.), will report on...
Mine went back for warrenty also. Mine went back due to a faulty screen but i noted down it had major signal issues too.
Have you had any update?
I am still waiting for mine. Don't know how long usually takes. Any expiriences?
djurkash said:
I am still waiting for mine. Don't know how long usually takes. Any expiriences?
Click to expand...
Click to collapse
Im still waiting now is 24th day, but i had sent by carphonewarehouse next time i will send straitgh to htc because cpw is not good.
24 days !? OMG, I hope I won't be that luck. I gave mysef my HD directly to official distributor (same place wher I have bought it) here in Serbia, this is 5th day since I have left it...
HTC told me 5 days from when they receive it.
Sent mine away also
I was experiencing the same problems, even when I had signal it was impossible to call someone(not always but it happends sometimes) and for some reason my FM Radio wasn't working.. I'll try to keep you all informed, if it helped to sent it back to htc..
sounds like htc might be collecting a nice pile of phones with the same symptoms. I wonder if that will prompt them to release a fix of some sort

Losing reception

Hi
I have an unlocked g1 using a three sim in the UK.
I have only had it about 10 days, for the first 5 days or so it would switch to 2g quite a lot and not switch back, which was not too much of a problem.
But for the last 3 or 4 days it will completely lose connection up to 4 times a day, only way to fix is to restart or choose the 3 network again in the options.
I had the problem originally with the standard tmob rom and i have switched to the CyanogenMod yesterday and updated the latest radio again and it has just done it again.
it even does it if the phone is just sat on the desk.
Anyone else having similar probs?
cheers

[Q] ideos x5 dropping 3g

Hi All,
Recently got myself an X5 (former win mobile user) loving it so far
My question is, data/3g connection seems to drop out randomly, the only way to restore it is by re-selecting it within mobile network settings any ideas?
As for the phone, it's great, especially for the cost of them. I have been using it for around two weeks now and no major issue as yet. Only annoyance is touch sensitive button can be easily pressed when in landscape mode.
I've also noticed this but just lock the screen for a few seconds then unlock because I have it set to disconnect data when screen is off.
same
Same problem here, I've changed already some Roms, but the problem persists. It happens pretty often that the signal is at minimum and a couple of times also showed "Emergency calls only". I also noticed that the signal level seems to be more affected while connecting through wi-fi. I guess smth. is wrong.
And I use only GSM not 3G.

[Q] Phone Reboots in Poor Signal Area

Hi everyone,
I've had this issue with my D800 for a while now. I've done a full clean install of CM12, following all the proper channels and install procedures.
I live in an area (central California) where I can have LTE one moment and Edge 100 feet later. So there's inconsistency everywhere I go.
When I am in an area with poor signal, my phone with freeze, and then reboot. It's quite annoying and happens approximately 5 times a day.
I put the phone in Airplane mode and try to get the phone to do it again, and it runs perfectly fine. Turn airplane mode off, it starts searching for a signal, then the reboot happens.
I used voltage control in many variations to slow the cpu down and still, it does it.
Does anyone here have any suggestions on what I should do to fix this problem? Has anyone else had this issue? Thanks!!!!
I've also run into this on the LG G2 running Blisspop 4.0 (based on CM).
I had the problem too, but it disappeared a time ago after the fix. Since then only one reboot... (I think 2 weeks ago or so like that)
Sent from my K00F using XDA Free mobile app

Losing mobile network

I have a stock t-mobile s7 edge device. It's losing the mobile network. I've noticed it a couple of months ago - it happened a few times but recently the problem is getting worse. It already happened 3 times this week.
Seems like completely random. Sometimes I notice it after I go somewhere with weak signal or no signal at all. Sometimes when I get back to an area with good signal it reconnects and sometimes it doesn't. Sometimes it shows the bars and says it's connected to t-mobile but 4g doesn't show up at all. So you can call but no internet. Sometimes no signal at all.
When it happens the only way to connect is to reboot the phone. Nothing else helps. If you try to connect to network manually - it can find t-mobile but unable to connect. just spins. Changing from lte to 3g or 2g also doesn't work.
I even tried to create a new APN - same thing.
Please heeeeelp...........
Last time this happened to me on another device, it was the sim card that had a problem. Have you tried with another SIM card?
No, but I don't believe it's a sim card related problem. Wife's phone has the same problem although less frequently. But she also travels less.
It looks like a configuration / firmware or maybe hardware issue to me.
I'm experiencing the same issue. It seems to happen when the phone loses signal completely like when deep inside a building. Then it won't reconnect to data or the network by itself.
From the first moment when I got my edge back in April I noticed that the radio performance was weaker than other phones. Then I got the Note 7 and same issue again. Then back to an s7 edge and the problem seems to be worse on this one specially after the latest software update.
Sent from my SM-G935T using XDA-Developers mobile app
My wife (s7) and me (s7 edge), as well as a co-worker (s7) are having this same issue.
Before it was happening occasionally, but after the last update its happening WAY more often.
Wiping cache seems to help with frequency, but still did not eliminate the problem. Hopefully it gets fixed with an update. I'm not sure how much longer I'll be able to put up with it.
Edit: I forgot to add a "simple" fix I've found that works almost all the time is to turn off mobile data, turn on airplane mode, turn off airplane mode, wait for signal, then turn on mobile data. Those steps in that exact order work for me most of the time.
So I've been having the same issues as everyone stated. The only fix is to reboot the phone, but who wants to that every time. I even changed the sim card!! I wish T-Mobile would get out of their feelings and start selling more flagship phones.
I have made the decision to jump to LG V20. I hope this issue doesn't exist with the LG.
I've just got my s7 edge and I'm sort of having same problem at home got 2 bars and sometimes goes to 4 bars but also wen I called someone the line was crackling but person said could her me fine so done a wiped cache and think it's sorted it now for the time being
(Edit ~ it's done it again could hardly hear person I was talking to)
Sent from my SM-G935F using XDA-Developers mobile app

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