Hello,
I have Lenovo K920 Air China ROM version with Kit Kat. Everything worked fine but one day I lose sim cards. I mean sim cards weren't detected and WiFi was 'Switching On' I mean blinking. Phone is constantly restarting by itself. I've done several factory resets, take out the battery and flashed phone. but nothing helped. Flashing went OK and I've got new ROM.
Phone is restarting after few minutes. I can not switch on WiFi and sim cards are not detected. Do you have any solution for that?
Thank you!
Related
I recently flashed the Eclipse ROM, and have been using it a couple weeks without any problems. Today, I looked at my phone and saw it was searching for service, though I still have 4G. I still can receive and send texts but get no notifications, and i can't make or receive calls. I've tried restarting the phone, taking out the battery, taking out the SIM card, putting it in Airplane mode, and turning on and off mobile data, but nothing has worked so far. I was going to try to return to stock using Odin, but Odin isn't recognizing the phone when i plug it in. Any ideas?
I had a similar issue, though reseating the SIM card worked for me. After it happened 3 times in a week, I complained to VZW and they issued me a new SIM card. I haven't had it happen again. *knock on wood*
I'm using zenROM and last night my phone suddenly rebooted and when it booted, it didn't ask pin. I shut down my phone and took sim off and put it back and rebooted again, this time it asked my pin, but still says no sim detected. I took my sim off again and put it back and rebooted. No Sim detected. Finally after 7 or 8 reboots it detected my sim.
So where is the problem? This has never happened before
I don't think the 2 issues are related.
Why are you removing your sim card? I haven't ever removed mine since I put it in. Hopefully it is seated properly now and you won't see that issue again.
As far as reboots, that is life with alpha and beta version roms. Blame HTC for not giving the updates to our device for the developers to have a more stable ROM. You could try reinstalling the ROM or trying a different one.
Hello all!
At first I wanted to apologize for my English, I will try to write everything clearly.
Recently I replaced display with digitizer on my sensation, I installed 3.1.1 ROM ViperS. Phone worked well for several days. Today, in the middle of the day I noticed that the phone does not detect the SIM card. Strange in all this is that when I reset my phone the SIM card works for a while and then back to "disconnect". I tried to upload the rom again (ViperS 3.1.1) and nothing has changed, I tried also with another rom (Revolution HD with firmware 7.3) and still the same. Other sim cards do not change. Any ideas what is this?
EDIT: The sim card slot gets warm when it is still working i think that. I think this is not normal. When wait a few minutes I can turn on airplane mode and then turn off after that procedure phone detect sim card for a while.
Hi! As fast I insert the simcard into the phone, it goes black screen and unresponsive. After 7 seconds, the screen goes on for 2 seconds and off again. In other words, looping. I never had this problem untill now. It worked yesterday till I ejected the sim. When inserting, the problem came. No updates done. Running MIUI 11.0.13 Global.
I've true putting it into airplane mode. As fast I turn that off, when the phone tries to register on the network, screen goes black. Anyone got this problem?
I will unlock and install MIUI EU on Friday. I hope that will solve EVERY problem this beautiful smartphone has.
After some more research, seems to be "Find Device Closed Unexpectedly" be the problem. Many users that updated their MIUI got this problem. Reflash should be the key. Still want to wait to unblock bootloader tho.
WaldenGaming said:
Hi! As fast I insert the simcard into the phone, it goes black screen and unresponsive. After 7 seconds, the screen goes on for 2 seconds and off again. In other words, looping. I never had this problem untill now. It worked yesterday till I ejected the sim. When inserting, the problem came. No updates done. Running MIUI 11.0.13 Global.
I've true putting it into airplane mode. As fast I turn that off, when the phone tries to register on the network, screen goes black. Anyone got this problem?
I will unlock and install MIUI EU on Friday. I hope that will solve EVERY problem this beautiful smartphone has.
Click to expand...
Click to collapse
Never remove ir insert SIM cards while the phone is ON, always turn it off.
oriveradel said:
Never remove ir insert SIM cards while the phone is ON, always turn it off.
Click to expand...
Click to collapse
Never ever did I turn off my smartphones to change simcards. But good to know. A reflash should fix it right?
oriveradel said:
Never remove ir insert SIM cards while the phone is ON, always turn it off.
Click to expand...
Click to collapse
But maybe it's better to turn off the phone just to be safe. But no one does that I know
WaldenGaming said:
But maybe it's better to turn off the phone just to be safe. But no one does that I know
Click to expand...
Click to collapse
In my experience I have damaged SIM cards, corrupted firmware on phones and damaged SIM slots! Always OFF
WaldenGaming said:
But maybe it's better to turn off the phone just to be safe. But no one does that I know
Click to expand...
Click to collapse
In my experience I have damaged SIM cards, corrupted firmware on phones and damaged SIM slots! Always OFF
Suddenly my One plus 6 shows no sim & WIFI doesn't get recognized. Tried clearing the cache & rebooting. Also tried resetting the system settings. now cannot switch on phone as no sim or wifi is detected. Phone get stuck when its searching for wifi ((
Phone is not rooted
SIM Card working in other phones.
Kindly someone help !!
[Expose Oneplus] SERIOUS ISSUE !One plus 6 shows no sim & WIFI doesn't Work
Suddenly my One plus 6 shows no sim & WIFI doesn't get recognized. Tried clearing the cache & rebooting. Also tried resetting the system settings. now cannot switch on phone as no sim or wifi is detected. Phone get stuck when its searching for wifi ((
Phone is not rooted
Bootloader is locked
Phone is running on stock rom
the phone freezes turns off and on by itself every minute until the battery is dead
sim cards dont work and dont get detected
wifi doesnt work when turning on turns itself off instantly
sometimes it goes away, the phone works like it never happend for a couple of days, then it doesnt work again
One plus is a fraud company its hardware gives up after 1 year,,,this is bul****
Hey dude
Well strange i would contact oneplus about this should be under warranty there's no point in asking on the xda if you haven't even unlocked bootloader and clearly you aren't a user that like to fiddle with things
Cheers hope oneplus support will help you
Mine op6 works fine have it till launch no issues so i guess its stupid to call company a fraud,there's always chance that the smartphone or any electronic device will fail overtime that why you have warranty
I have posted my query here because few years back when i was using HTC ,i faced an issue and when the service centre gave up and returned my phone unfixed,one senior member from xda helped me to revive my phone and certainly that guy made my day for which i shall be forever thankful to xda forum
P.S : I am Sorry if i have hurt you in any way , i am just fed up not able to find any solution yet
I am just here trying my luck and hoping to find another life saver, Cheers ?
I've got the exact same problem. Op folks told me it's a hardware issue and they might have to replace the motherboard. But I really don't trust them
Its pretty much a hardware problem. I had the exact same problem with my OnePlus 3. I went to the official OnePlus service centre and they told me the same (to get the motherboard changed). I don't think it's worth to change the either motherboard.
I got the network IC repaired for half the price from some local mobile repair shop. See if you can do the same.
I have OP 6T and this issue started right after one of the updates, as the phone asked to reboot after an update. So, right after that update phone took 10-15 minutes to boot. Couple of days ago the was another Google Security Fix update, and that killed everything. No SIM cards, no wifi hardware... I tried fresh install, which stucks at - Wiping, Please wait. I tried to unbrick it, and I was able to reinstall official android, but still not wifi or mobile networking. they are just gone. - Does not like a hardware issue to me...
Turn off phone, remove SIM, turn on phone with no SIM, turn off, then plug in SIM and reboot again.
Most likely it's the Network IC, very common issue
You can try all the SW things first just to be safe but if nothing works then it's all that's left.
I have found a workaround which has worked 100% during last 7-8 times this issue happened. Once the no sim and wifi detect issue happens, switch off the phone, plug it into charging, let it charge in switch off mode for 2 mins and then switch it on with charging on.
It sounds like jump starting but somehow it works. Seems like network IC or something gets reset. Keeping my op6 for now with this workaround!
Hellboy1243 said:
Suddenly my One plus 6 shows no sim & WIFI doesn't get recognized. Tried clearing the cache & rebooting. Also tried resetting the system settings. now cannot switch on phone as no sim or wifi is detected. Phone get stuck when its searching for wifi ((
Phone is not rooted
SIM Card working in other phones.
Kindly someone help !!
Click to expand...
Click to collapse
I too had a similar problem after getting my touch and screen replaced at OnePlus service center , while returning they told me that it's motherboard is also faulted and will work for few months at max and after I started getting the same problem as sim card not being detected and wifi unabled , but I got a temporary fix for it. The problem still persist.
The solution to this is while the phone is loading just slap the screen with palm strongly just don't break the screen , slap it repeatedly until you are asked to put the unlock code.
The solution to this is while the phone is rebooting just slap the screen with palm strongly just don't break the screen , slap it repeatedly until you are asked to put the unlock code.
It's a temporary solution as the problem is in your motherboard, i even had my IC changed but nothing helped.This is the only solution, it keeps happening twice a week or even more.