Connection problem after phone update - Xiaomi Poco F1 Questions & Answers

Hi all, I have recently purchased the Pocophone F1 from a Hong Kong seller (am based in the UK).
For the first few days everything thing was fine but 2 days ago I updated the phone and am now unable to connect to 3g or 4g bands. The sim card is new (2 weeks old with Vodafone) and works fine when I transfer it across to another phone.
Does anyone have any suggestions as to the problem or how to fix it?
Thanks

try a factory reset

I got the same problem Asian I Factory reset with few times It still no serive.......

Check if ua imei is available
Sent from my POCO F1 using Tapatalk

Related

[Q] Galaxy tab 10.1 3G does not recognise SIM card

Hi there, I have purchased my tab last friday, played around with it during the weekend (root, overclock, etc.) Everything was fine - internet connection via 3G and WiFi, battery life and so on. However after I swithed off my tab on sunday evening and left it on charger, monday morning I realised that galaxy tab 10.1 does not recognise any SIM cards. The device itself is unlocked here, in Lithuania.
Any ideas what might have caused this strange behaviour? Everything else is working fine.
Hi!
I have the same problem, started about a week ago. SIM-card just looses connection at random times. Mostly when i've just left it in the charger for an hour or two.
A reboot is needed then it's working as normal.
What do you think? Should i return it?
Did you try and setup the APN manually?
Heppieboeddah said:
Did you try and setup the APN manually?
Click to expand...
Click to collapse
Obviously...
The thing is that device itself does not recognise SIM card. Once You try to configure APN manually, it sais "please insert SIM card" :-(
and reboot doesnot help...
I have this issue too! I thought i was the only one experiencing this.
I have this problem 1 time, but i tried to switch sim with the one in my phone and it worked. Afther i switched back again and still working.
I got the problem afther my tab have been switch off for 5 days.
Sent from my GT-I9100 using xda premium
Well, after I left device in one of authorised dealers, they acknowledged the problem and offered to replace this Tab. So it turns out, one can only hope, that it does not happen to him...
Hi guys
Turns out all my problems were caused by overclock kernel. Today my tab was replaced so first thing I did was root it again and make a back up. Then I installed OC zip file from SD card via CWM recovery. Guess what? Device did not recognise SIM card again... luckily I had a back up ROM. After I went back to the original ROM everything was OK.
So be careful before over locking your tabs.
Sent from my GT-P7500 using XDA App
I'm using a competely stock Galaxy Tab, and it's still happening quite frequently.
mlhdk said:
I have this problem 1 time, but i tried to switch sim with the one in my phone and it worked. Afther i switched back again and still working.
I got the problem afther my tab have been switch off for 5 days.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
i exactlay have the same issue with the 8.9" version. i also was able to solve the problem only with this method. is this a software issue that may be adressed? Shoul i exchage the device.
Thanx.
deadwarrior said:
I'm using a competely stock Galaxy Tab, and it's still happening quite frequently.
Click to expand...
Click to collapse
my 10.1 tablet says please insert sim card after i have inserted the sim card is it possible..i bought it in hong kong and now am in africa...its kh5
my friends is kg7 and it works fine cud it b a software issue or hardware
same problem just happened to me.
is there any solution found?
sim is ok on my htc desire but tab 10.1 cant detect it.
it has stop suddenly while browsing some news sites.
reboot does not help
i tried with another SIM also, same problem - cant detect SIM card at all,
when trying to open Mobile Network it says - Please insert SIM Card or something simllar.
Also i found that in About Phone - Status, IMEI and IMEI SV are Unknown, Serial is OK, is this normal?
Look I know this is a dumb question, but have you rebooting the tab after inserting the Sim? A client of mine had the same issue and we struggled for days until we realized we hasn't tried that. Sure enough that was the issue.
I think the tab only tries to access the Sim card on bootup.
Sorry if you have already tried this.
Sent from my HTC Desire using XDA App
divereigh said:
Look I know this is a dumb question, but have you rebooting the tab after inserting the Sim? A client of mine had the same issue and we struggled for days until we realized we hasn't tried that. Sure enough that was the issue.
I think the tab only tries to access the Sim card on bootup.
Sorry if you have already tried this.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Sure
I tried, no effect
Tab was only 5 days old, but now it is in our local service for board replacement.
Ok, MTel changed my harware modem and SIM slot, that is written to my card when they return it back.
After 4 days , no IMEI and No internet connection again.
so, buyed new one - after 4 days fail, repaired, after 4 days fail again..
i dont have words for Samsung... never gonna buy samsung tablet again..
How do you configure APN manually???
does anyone have fix this problem without sending to Samsung?My Samsung tab 8.9 suddenly cannot detect sim card..I bought the AP version so no warranty from Samsung but just 1 month from the shop..that shop also can't fix this problem..
Oh samsung why this thing happen to me
galaxy 10.1 does not recognise sim card
hi all
im also facing the same problem, sent to service to fix this issue
thought everthing will be alright after 2 weeks of waiting,1 days after the service, face the same problem, it works fine on the day 1, i turned off the device and charged the device and when i turn on the same problem
sin not recognized on galaxy tab 10.1
I have the same problem. Tab says "plz insert sim card. I have already inserted sim card
Same issue here .. I picked up the tab on a business trip in India and it worked fine while I was in India . I came back to UK and tried a UK SIM and it does not recognize a Vodafone Sim , Giff Gaff but recognizes 3 . Even though it recognizes 3 it does not let it register on network.
Not really sure what the issue is .. Is it restricted in some way .. ?

[Q] Samsung Galaxy Nexus suddenly simlocked

Hi All,
Just bought my Nexus last week (new from Amazon) without simlock. I inserted the simcard and all went fine up until today when I wasn't able to start up anymore and the phone told me that the sim card is now locked.
No idea why that is as the same simcard worked just fine on my old HTC (equally bought without simlock).
Do any of you have an idea of what happened here and how I can fix it?
Thanks in advance
PS: Phone has google fm and was upgraded to jelly bean on the first day

Not Registered on Network

Hello friends.
I got a S3 bought on the Tigo carrier, but I needed it to use it on Claro carrier. The day they give the phone to me I tested my Claro Sim and since all was good I decided to buy it. And actually it worked all fine for like 2 months, then suddently I got a "Cannot Register on Network" message, while on this state I cant make/recive phone calls or SMS but oddly I still have full 3G internet with no problem. Removing battery / SIM used to solve the problem sometimes but not anymore. I tried change SIM for a new one and still the same problem. Tried hard reset aswell and didnt helped. Its weird because I used it on Claro perfectly for 2 months then this happened. If I put a Tigo SIM it works all good. =/
What do you suggest me to do? I need to use my Claro number.
Thanks in advance.

Foreign SIM not detected

Hi there,
I'm from Germany and went to a scuba diving trip to Egypt two weeks ago. Last year I bought an Egyptian Vodafone SIM to use the cheaper conditions for SMS and Internet with my rooted HTC Desire HD.
This year, I thought, I could redo this with my stock HOX+ which I got by extending my contract (also Vodafone) . But as I attached the SIM to my phone it wasn't recognizing it. As soon as I switched back to the German card everything went back fine (except the prices).
So I thought the HOX+ came with something like a SIM lock, which is uncommon for a non-prepaid phone in Germany, and decided to root it and install a custom ROM (CM 10.1)
But also with this ROM the phone won't work with the Egyptian SIM. The SIM did work in two different phones and their SIMs didn't work in my phone either.
So is it possible, that there is something like a regional lock on the HOX+ which is not related to the used ROM? And how could I get an foreign SIM to work in my HOX+?

Honor 8 behaving like it's locked?

I've a problem with my new Honor 8. I have a Vodafone contract SIM in slot 1 and when I went abroad to St Lucia I bought a local SIM (flow) for slot 2 and switched over to activate that in the settings. A Simple process i have not done before on this phone but have on my previous Motorola Moto G4. The problem is the only network the phone could see was the other carrier on the island (Digicel) who Vodafone use if I used world traveler plus at £6 a day. The SIM worked fine in my friends Samsung J4 so the SIM was OK. I tried the Flow SIM in SIM1 and it still didn't work.? again it detected the Digicel network but not flow? I tried auto search and manual search?. Actuated roaming and mobile data. Re-started the phone countless times. It's like the phone is behaving as if it's locked for Vodafone only (which is what the guys in the flow shop said?) but I bought the phone from Huawei direct through Amazon as unlocked?
It should be simple and straightforward?. I've checked and re-checked the settings many times
Any ideas?

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