Mi3 No SIM card issue - Mi 3 Q&A, Help & Troubleshooting

Hello, I was using lineage Os latest nightly when I encountered this issue. I wanted d2w. So I flashed Zurion X. Phone rebooted to TWRP. So I flashed recankut kernel. Phone worked. But I noticed that it started showing no sim card. I tried flashing Lineage Os back and nothing. So I flashed MIUI latest global beta via fast boot. No SIM card issue persists.. Now Im beginning to think that the issue is hardware issue.. I dissembled the phone.. But the sim card connectors seems to be OK for naked eye.. MY phones I will is not affected, neither the baseband.. So I'm out of options now. Can someone suggest me a workaround to bring my phone back to life.
Thanks.
Also it seems that I can make emergency calls.. Which means the radio I working

nuwanmw1988 said:
Hello, I was using lineage Os latest nightly when I encountered this issue. I wanted d2w. So I flashed Zurion X. Phone rebooted to TWRP. So I flashed recankut kernel. Phone worked. But I noticed that it started showing no sim card. I tried flashing Lineage Os back and nothing. So I flashed MIUI latest global beta via fast boot. No SIM card issue persists.. Now Im beginning to think that the issue is hardware issue.. I dissembled the phone.. But the sim card connectors seems to be OK for naked eye.. MY phones I will is not affected, neither the baseband.. So I'm out of options now. Can someone suggest me a workaround to bring my phone back to life.
Thanks.
Also it seems that I can make emergency calls.. Which means the radio I working
Click to expand...
Click to collapse
It was my sim card tray.. The lower right coner of the sim tray was broken and it interfered with the sim card identification mechanism. With a new simple card tray my phone is fixed.

If the SIM card tray is damaged (for example, a piece of plastic is chipped off or a metal plate is deformed), this can be the cause of the problem when the Xiaomi smartphone does not see the SIM card.
I had such a situation on my Mi 3. In the service center they could not find the cause of the problem, I found it myself.
I hope this information will help to somebody.

Related

[Q] CM7 Sim card problem.

Hello. Yesterday happened some strange thing. I was playing Trial Bike on my Mini and after I closed it I noticed that my phone had an sim card icon with (!) mark at the notification bar. So it didn`t detect my sim card. Tried rebooting but didn`t help.
So, then I tried to flash to stock 2.3.6 ROM and the SIM was detected. Then I updated back to CM7. Everything worked fine till now. Again my phone does not detect my sim card.
Maybe some one knows a solution how can I fix this?
Thanks.
[EDIT] Found a solution. It was because I enabled "Disable lockscreen" @ CM Settings.
Thanks to this post.

Z3 Compact - How to ONLY update baseband (having "sim" loss issues)

Hy guys,
I'm facing some issues with my Z3C. I bought it 2 weeks ago, unlocked bootloader, installed twrp, flashed CyanogenMod 12.1 Nightly on day 3. Updated CM twice with OTA since then.
My problem is that the "sim" card (GSM/LTE) is randomly not noticed by my phone, like if its removed. I checked the sim tray, everything is stable and well seated, the sim is also OK, never had an issue with it. I just have it in my pocket or on the desk, pick it up to do something and there is already a No SIM icon on the status bar, and "Emergency calls only" If I lock the phone. Only a restart solves it.
I could not find any noticeable trigger which would lead me to the source of the problem. Sometimes its OK for 2 days sometimes it happens 2 times a day. The really frustrating part is that when the sim "disconnects" the phone starts to heat up significantly. I usually only notice it because my phone is burning my pocket. Also it looses around 20% battery before I notice it. After the restart everything is fine, the phone cools down.
Went to the Cyanogen forums for some possible solution for the problem, they suggested that I should try to update my baseband to the latest version, and if that still doesn't help, do a full wipe / clean install of CM nightly. I tried downloading the latest firmware using FlashTool and XperiFirm, creating an ftf, and flashing only AMSS_FSG, AMSS_FS1, AMSS_FS2 included into the flash ( I only wan't to flash the baseband ?!?).
My question would be: Anyone else had this problem and managed to fix it somehow? If not, anyone could please help me with a small guide how to ONLY update the baseband of my Z3C (D 5803) running CM 12.1 nightly on twrp recovery?
When I tried the flash above, my baseband version did not change. Currently I'm on "8974-AAAAANAZQ-00005-40" Baseband version, and I would like to move to the latest most stable one.
Thanks for the help in advance!
If it were my Z3c, I would flash back to stock completely and then reflash with Cyanogen. This is a device on which you have the freedom to do that, and that gets the job done safely. Backup your CM install, and then flash everything.

XT1068 suddenly stopped detecting SIM Card (both slots)

My XT1608 stopped detecting SIM cards all of a sudden. The same SIM cards (cropped and official) are working with other devices. It was running the latest build of Lineage OS but reverting back to stock Marshmallow doesn't solve anything.
swapnil360 said:
My XT1608 stopped detecting SIM cards all of a sudden. The same SIM cards (cropped and official) are working with other devices. It was running the latest build of Lineage OS but reverting back to stock Marshmallow doesn't solve anything.
Click to expand...
Click to collapse
I've got exact same problem, phone is now useless. i,ve tried to flash couple roms , pure stock, reflash bootloader and modem but without any change. if someone has any solution it would be wonderful.
dabus666 said:
I've got exact same problem, phone is now useless. i,ve tried to flash couple roms , pure stock, reflash bootloader and modem but without any change. if someone has any solution it would be wonderful.
Click to expand...
Click to collapse
Try to change sim tray
swapnil360 said:
My XT1608 stopped detecting SIM cards all of a sudden. The same SIM cards (cropped and official) are working with other devices. It was running the latest build of Lineage OS but reverting back to stock Marshmallow doesn't solve anything.
Click to expand...
Click to collapse
Check your IMEI..may be it get deleted..

No SIM signal or wi-fi after update

Hi everyone,
I have a big issue with the xiaomi.eu Miui 12 20.7.2 and other after this...
After install in my phone (Mi 8) I dont have access sim card. Is like that I dont have any sim card. And no wifi to.
I've done first a dirty install and after a clean install but the problem continued.
After I was rollback to the 20.6.18 version where all works fine! if I upgrade again the problem still the same...
What can I do?
Thanks
Same issue
Hi, I have the same issue, in my case that issue started once I installed Miui 12 20.07.16. I tried installing other ROMs without fix this problem, I will wait until they deliver a new version waiting they solve this problem.
Which TWRP did you use to flash the rom?
I don't think it is a software problem if you have the following symptoms, No WiFi but Bluetooth, no service but detect SIM card, random reboots out of nowhere or when trying to turn on WiFi, unknown baseband and it gets hot, apparently it is a processor SoC solder problem

GOOD DAY NEED HELP PLEASE

Good Day and Peace and Blessings to everyone here.
My problem is that my daughter's phone (Redmi Note 9) has been giving trouble with recognising the dual sim and memory card tray, this happened some time after purchase and it's first update to MIUI 12. Normally this would happen when the phone was restarted, the tray would have to be popped out and re-inserted and then the tray would become functional.
Recently when it updated to MIUI Version 13.0.2.0 Global Stable (SJOMIXM) it has completely stopped recognising the Sim and memory card Tray, you could see it appear and disappear as if trying to work before there's n error message about the .com.phone something not functioning and then it would shutdown and restart in the recovery mode.
Nothing seems to fix this issue so I'm stuck with a phone that I cannot use, I would like to know if there's a way to troubleshoot this issue or if there's a way to install another rom for this phone to function.
I'm familiar with troubleshooting phones but this one has been challenging me for some time now. I've read that there has been an issue with the sims not being recognised and that this new update was supposed to fix it, unfortunately it hasn't.
So far the best I can tell or think is that some of the firmware was corrupted, so I'm wondering if there's a way to completely wipe the phone and reinstall all software to somehow get rid of the problem.
Any assistance would be greatly appreciated
Trinisweethand from T&T
Make sure the bootloader is unlocked and USB debugging enabled. Download the Mi Flash tool and an older MIUI from Xiaomi's website or from https://xiaomifirmwareupdater.com/archive/miui/merlin/. I'm not an expert in firmware and ROMs. I just flashed my RN9 with a well-maintained ROM and just never looked back at MIUI. Also, try testing out the earpiece and the proximity sensor if the screen turns off once you cover the top. It could be that the IMEI numbers got lost. Try opening the dialer and enter *#06#, you should see a popup showing your S/N and IMEI numbers.

Categories

Resources