Mi Mix 2 is loosing sim signals and having random reboots - Android Q&A, Help & Troubleshooting

hi guys,
i was using miui 10 china beta rom based on oreo(8.0) and i got miui 10 OTA based on pie. so i updated to pie. as i used it i faced some bugs which were really annoying like force closes and notification problems. so i decided to downgrade back to oreo. i downgraded my phone to oreo by flashing through mi flash tool.
after flashing i started to get signal drops on both sims. and whenever phone loose signals it reboots automatically. i then flashed it again to pie but same problem.
i have tried alot of custom roms too but no solution. ive tried almost everything but i just cant solve it.
help me if someone know to get solve it
thanks in advance

Related

[Q] Signal

Hi guys, I've had this issue ever since I bought this phone but I never really tried fixing it.
I've had many different ROMs: stock jb to custom ones and now stock kk, yet it is still present.
I've tried searching but I haven't found a solution.
My phone frequently drops/loses its signal many times a day.
There is no pattern; it randomly loses signal for a while.
I've learned to just resend my messages if they fail to send, but can anyone help me finally resolve this issue?
My phone is unlocked and I live in New Zealand.
Currently I'm on the stock KK rom and I have never touched my modem/radio.
Would it be solved by flashing a new radio? And if so, which one is recommended?
Please help, thanks

Downgrade to MIUI 8.0.3.0 global stable?

Hi guys
Just received my redmi note 4 three days ago, set it up and installed all my apps and it was good, the version on it was MIUI 8.0.3.0 Global Stable, but it was asking me to update to 8.0.4.0, so I did, and ever since I noticed that the phone gets more hot, battery drains faster than it used to on previous version, and what's even worse, is the signal, it keeps always switching between 4G and 3G even if the signal coverage in my location is good (had the galaxy s7 before and it never did this), even on MIUI 8.0.3.0 it was a stable 4G all the time. So I performed a factory reset and started fresh, battery and heat are now good but I still have the bad signal issue. So I figured that I should downgrade to MIUI 8.0.3.0 and wait for 8.2 hoping that it won't have this issue. The question is how can I do that? Can I use the standard method of flashing using SP Flash Tool found here? http://en.miui.com/thread-370620-1-1.html
If you have any other solutions, please advise
Thank you!
Silvers91 said:
Hi guys
Just received my redmi note 4 three days ago, set it up and installed all my apps and it was good, the version on it was MIUI 8.0.3.0 Global Stable, but it was asking me to update to 8.0.4.0, so I did, and ever since I noticed that the phone gets more hot, battery drains faster than it used to on previous version, and what's even worse, is the signal, it keeps always switching between 4G and 3G even if the signal coverage in my location is good (had the galaxy s7 before and it never did this), even on MIUI 8.0.3.0 it was a stable 4G all the time. So I performed a factory reset and started fresh, battery and heat are now good but I still have the bad signal issue. So I figured that I should downgrade to MIUI 8.0.3.0 and wait for 8.2 hoping that it won't have this issue. The question is how can I do that? Can I use the standard method of flashing using SP Flash Tool found here? http://en.miui.com/thread-370620-1-1.html
If you have any other solutions, please advise
Thank you!
Click to expand...
Click to collapse
Hello there!
You can use the method that you linked without any problem. SPFlashTool does not check for current firmware version so you can do a downgrade just fine. Make sure to follow the exact steps in MIUI Forums especially where it says wich files/images to flash to your device. Otherwise you may brick your Note 4.
If you are interested you could also try a custom ROM wich will give you a smoother and less buggy device. But you will need a bootloader unlock for that to work.
silvershadow666 said:
Hello there!
You can use the method that you linked without any problem. SPFlashTool does not check for current firmware version so you can do a downgrade just fine. Make sure to follow the exact steps in MIUI Forums especially where it says wich files/images to flash to your device. Otherwise you may brick your Note 4.
If you are interested you could also try a custom ROM wich will give you a smoother and less buggy device. But you will need a bootloader unlock for that to work.
Click to expand...
Click to collapse
Thanks
I've already downgraded, unlocked my bootloader and tried a couple of custom ROMs including Epic ROM and multirom, but I didn't like them very much, they had too many buys and the development for them is not very good.. Could you suggest a good custom ROM that isn't as buggy and has a good battery life? I'd appreciate it if you could.
Silvers91 said:
Thanks
I've already downgraded, unlocked my bootloader and tried a couple of custom ROMs including Epic ROM and multirom, but I didn't like them very much, they had too many buys and the development for them is not very good.. Could you suggest a good custom ROM that isn't as buggy and has a good battery life? I'd appreciate it if you could.
Click to expand...
Click to collapse
I only tested one ROM yet and that would be that one linked here!
It works just fine at the moment. I have had it for 4 days now. I would also suggest flashing Magisk 11 or suhide.
There currently is a Bug with the middle Softkey wich is assigned to multitasking view and the google search at once. Someone has posted a fix for that wich i cant find currently because it was posted in MIUI forums and the user was banned. You can always try to swap the Softkeys yourself with an xposed module or a root app.
:silly:
silvershadow666 said:
I only tested one ROM yet and that would be that one linked here!
It works just fine at the moment. I have had it for 4 days now. I would also suggest flashing Magisk 11 or suhide.
There currently is a Bug with the middle Softkey wich is assigned to multitasking view and the google search at once. Someone has posted a fix for that wich i cant find currently because it was posted in MIUI forums and the user was banned. You can always try to swap the Softkeys yourself with an xposed module or a root app.
:silly:
Click to expand...
Click to collapse
Tried this one before, it was good enough, and I was able to swap the buttons using Gravitybox.. I just flashed latest epic ROM yesterday and so far so good.. But I'll surely change it again in a few days (I love re-flashing ROMs)
Thanks
fastboot link miui8.0.3.0 redmi note 4 snapdragon
bro , do you have the fastboot link miui8.0.3.0 for redmi note 4 snapdragon version?

need help with switching rom

Hello everyone,
So i've been a xiaomi redmi 3 user for a few months now, no problems whatsoever.
I flashed lieage 14.1 rom when i got the phone, been satisfied, then like a week ago i flashed the 'pixel experience' rom... Now i would like to swith to the official miui rom but i dont have access to a computer. Is there any way to flash the official firmware without a pc ? I obviously have an unlocked bootloader and latest twrp...
If you came across a miui debloated rom, please tell me, i'd like to give it a try
Thanks in advance

No more mobile data Signal on custom android ROMS but on MIUI

Hi!
Two days ago i´ve tried orochis miui 9 port with android 7. I flashed the rom with twrp what didn´t work because i´ve had to use redwolf recovery to flash this rom. So i´ve flashed bootleggers rom again to my device and had no WIFI Signal when installation started. I´ve flashed new FW and WiFi Signal was back again.
Then i´ve recognized that my mobile data is only present on my KATE when i flash a ROM and boot the first time.
When i boot second time only signal for calling without mobile data is present.
When i flash the orochi or the miui pro port based on android 7 mobile data is working.
The APN´s when using a custom ROM are looking quite normal.
I´ve flashed several FW´s (actual from latest global stable) and also reflashed the modem.
Does anyone have an idea what i can do to get mobile data back using my beloved booleggers rom?
Btw. the problem appears on all custom ROMS - Android 7.1.2 and 8.1.
My KATE device is officially unlocked.
Thx in advance!
b0mb
b0mb said:
Hi!
Two days ago i´ve tried orochis miui 9 port with android 7. I flashed the rom with twrp what didn´t work because i´ve had to use redwolf recovery to flash this rom. So i´ve flashed bootleggers rom again to my device and had no WIFI Signal when installation started. I´ve flashed new FW and WiFi Signal was back again.
Then i´ve recognized that my mobile data is only present on my KATE when i flash a ROM and boot the first time.
When i boot second time only signal for calling without mobile data is present.
When i flash the orochi or the miui pro port based on android 7 mobile data is working.
The APN´s when using a custom ROM are looking quite normal.
I´ve flashed several FW´s (actual from latest global stable) and also reflashed the modem.
Does anyone have an idea what i can do to get mobile data back using my beloved booleggers rom?
Btw. the problem appears on all custom ROMS - Android 7.1.2 and 8.1.
My KATE device is officially unlocked.
Thx in advance!
b0mb
Click to expand...
Click to collapse
First Update to latest twrp 3.2.1 version.
And flash this firmware.
https://androidfilehost.com/?fid=890129502657594972
I've already tried that firmware.
I've also flashed latest global stable Rom.
The problem still persists.

can't get lte/4g to work in redmi note 3 special edition(kate) in custom roms

i tried to flash havoc os 3.12 and it was excellent the only thing is i couldnt get lte or 4g. sometimes 1 out 10 i could get it but every time i rebooted it'd be gone to that's an annoyance to say the least. this happens in most roms. using exactly the same apn as miui and imei are intact also tried flashing miui kate firmware and no luck. please help fellas!

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