SIM Card Voltage Change - Xiaomi Mi 8 Pro Questions & Answers

Hello, I'm a CHN-UNICOM user(need 3V),But maybe the paranoid Quartz 5 OS have set the sim Voltage to 5V.How to deal with it?

Oh, is that why Paranoid Android didn't work for me? I tried many times, and it was always trying to detect sim card, detects it, and then complains no sim card. This process repeated endlessly. In the end, I gave up and went back to MiUi.
Now I'm very happy with LineageOS with MicroG, very lightweight, fast, and efficient. Everything works, and no garbageware services.

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Problem with SIM Card

Hi there,
I have a problem involving my SIM card. Well the card itself works fine, tested it on my old phone, but my Hero won't find the SIM for some reason. I think it might be the mechanic system where you insert the card(having a hard time putting it in other words due to my bad english knowlegde). Anyone got experience with this? Maybe I just oughta go back to the store, but might as well give it a first try here.
Some extra information: it worked first of, and i think it endured all night working, and then all of a sudden my phone says there is no SIM inserted. Yesterday I had the same and i put in the card again and it read it with no problems.
I've tried re-inserting the card and turning on and off my phone a couple of times, but it don't seem to be doing any good.
It also seems to me the me entrance of the card(hope you understand lol)
is leaning a bit up, instead of pushing the card to the reader.
Hope i've been clear enough and you might be able to give me some advice!
Thanks!
This stumped me for a few hours too a few days ago; as in i spent a few hours googling how it might be locked to a network when it is unlocked!?
in the end I realised that the cage the sim card sits in needs to be pushed to the left to lock it in place (ie keep it in contact). If you dont lock it in and just let the battery hold it down it looses contact when it vibrates and then displays the no service or no sim message.
Hope this helps?
You are my new hero
Thank you very much!!!
I find it kinda weird though this system, was this anywhere to notice in the manual?
Well what the heck, i'm just glad everything is oke now
This topic can be closed(if that's how you roll on this forum

[Q] SD Card Missing Icons & Reboot/Restart Issues

Hello all, I have decided to catalog all of the missing icons and rebooting issues into one spot as I have just received a new phone from Toshiba because my old phone repeatedly rebooted upon boot... and now my new phone is repeatedly rebooting upon boot, which is the same thing that my old phone did! Also, I can't remember how I solved the "missing icons from programs installed on SD card problem" but I have that same problem again. Now, I live in Japan, I have tried most of the radios, could living in Japan cause my phone to reboot? Like could the radio when it is trying to connect to the tower not like the signal and then fux up n' reboot? I need help, I know Kevin P. White played around with this issue, I know that most of the people on this board had this issue at one time or another. Any ideas friends?
SD Card Missing Icons Issue & Problems loading apps installed on SD Card
http://forum.xda-developers.com/showthread.php?t=578834
http://forum.xda-developers.com/showthread.php?p=7262188#post7262188
http://forum.xda-developers.com/showthread.php?p=9046202&highlight=ffboy#post9046202
http://forum.xda-developers.com/showthread.php?p=7046845&highlight=ffboy#post7046845
http://www.modaco.com/content/toshiba-tg01-tg01-modaco-com/303742/problem-installing-apps-to-sd-card/
http://www.modaco.com/content/toshiba-tg01-tg01-modaco-com/298349/tg01-freeze-on-programs-installed-on-sd/
http://forum.xda-developers.com/showthread.php?t=691011&highlight=icons
Rebooting Issue
http://forum.xda-developers.com/showthread.php?t=648809
I tell you, if someone can help me with the rebooting issue, it would be so much appreciated. It is so frickin’ annoying to have the phone just almost boot up, then freeze for about 2-3 minutes before rebooting, then it will do this 3-4 times before it is stable. Someone else has to have this problem as I just got a brand spankin' new phone from Toshiba, and I still am experiencing the same problems that I did before. Thank you,
What the hell am I doing wrong? It must be my fault right?... I mean... There is no way that two phones from Toshiba could be having the same problem, so what am I doing that very few other people are doing?
I have tried using all of my stupid skills to come up with a solution, but... no avail. I need help.
-Kilimessed.
PS: I will fix this problem, this post will catalog all of the known issues and fixes with this device, I can promise you, I will fix this basterd.
[UPDATE] - Trying one of FFBOY's roms [ROM][ENG]FFBOY'S WM6.5 21914+Manila 20161332!Radio5005.1700.05!8/8 - I read in one of those posts that he uses a different SD Card driver. Will report back later.
[UPDATE2] - It is later now, I do not have an SD card problem anymore, FFBOY's rom has definitly solved that issue, however, the rebooting problem still persists. It will begin to boot, just past the splash screen, then freeze for 10seconds to 2minutes depending upon the barametric pressure at that time... ehheeh.. **** ... i donno.. but.. anyways.. if someone can help me with the rebooting problem, that would be much apreciated. Ok, so I have done the following, I have removed the SD card and the SIM card but it still freezes/reboots 2-3 times before loading windows. Anyone else here having the same issue?
The solution to all these issues is simple : Don't install your applications onto the SD Card.
Once you've moved everything into the phone memory, you'll find it all works much better !
What about the cycle boot freeze problem? Oh man, I would give anything to have my stupid phone boot properly!... Again, it will freeze 2-3 times, then it will boot properly, it doesn't matter if there is no sim card and/or sd card installed at the time. Anyone experienced this?
Hi Kilihari! I had a similar problem with my TG01. I'm not firm in programming windows mobile, so I can't give you an advice in this direction...
but when that occured on my TG (plus freezing phone when press slightly on the backside of it), I sent it to the Toshiba-service partner for warranty - and got it back, still having the same problem -freezing after light pressure on the back-cover and independent from that (occured before) recycling boot (only 30% of the boot-trials worked properly). So I recorded a video with the problems and sent it back to Toshiba service the next day...
The result: My phone received a new motherboard, new IMEI etc. Which one of the two faults was the cause for replacement...i don't know, but maybe the recycling boot is rather a hardware-fault-caused problem than software-caused...
Good luck in finding a solution!
mcmurzen
i ther, I have not had a problem with rebooting but I do get the missing icons quite a lot.
I find that using Sense roms is fine, I assume that while Sense is loading the system has more time to scan the sd card and load the icons. But this has a knock on effect on both memory and battery life.
I did find a rom somewhere (cant remember which one) which had a very lengthy boot/startup animation and the icons appeard fine. But it took a while to load so I changed this to a more traditional logo and the icons dissapeared.
I uninstalled this but the icons never came back and I did read that by changing the startup wait times this could also fix the problem so I tried experimenting and trashed my TG01 and I had to hard reset to clear and since then I have not 'experimented' since.
If someone has some spare time on their hands and dosent mind all the reboots they may find an answer but in the end I had to make customised icons and use JWD icon changer
Thanks guys for your help, I am sending my phone back to Toshiba, I will do this up again, I will pay for it, I don't care, I got to get this fixed.
Good luck and keep us posted
Problem Solved!!!!
Good news.
So I decided to give it one last shot, to try just one more time to get my phone working properly. I turned it on and preformed a “Master Clear” on my phone, stock Toshiba ROM freshly downloaded from their website, just to give it one more shot. I didn’t want to take out my SIM card from my secondary ASUS phone so I just took the pre-paid “Pay-as-you-go” SIM card from Softbank Mobile here in Japan (we use it sometimes when we have company over from Canada). A very interesting thing happened... right from the very beginning, I noticed that my phone was much more responsive and stable, I noticed that it didn’t freeze or reboot. It was perfect. The radio for the Japanese Docomo T01a is 5005.1901.1.20 which must make it possible for it to work with Japanese SIM cards, of course the new radio for UK Orange is 5001.0001.76. My "pay-you-go" SIM card looks like the previous generation's SIM, whereas my official Softbank SIM card looks newer. Anyways, the pay-as-you go SIM works, well the other SIM worked too, but this time my phone doesn't reboot, IT IS STABLE!!!! Meaning my phone is good. If anyone would like me to go further and take some photos of the SIMs, I can, just so if anyone encounters this problem ever again, we now have some additional information for the people in this community. If someone is experiencing the same problem as I am, you can just get a pay-as-you-go card or use a different carrier’s card and it might work, but the rebooting at boot and random freezes are not caused because of defect in my phone.
WoW.... I can't believe after a year and a half of pain, misery, and suffering, that it all came down to a stupid pay-as-you-go SIM card... also, my phone still froze without a SIM card in it, but after I had put in the pay-as-you-go SIM card, then it froze one more time, but the second time it booted, and then after it booted properly, then it has been good ever since, even without a SIM… now it is good. I can't believe this... honestly can't believe this. Even if it reboots once a day, there is no problem with that, but it has been totally stable... holy ****.... holy crap, it hasn’t rebooted in a whole DAY!!!! Moral of the story, buying a phone from a different country has issues related to it. EHEEHHEEHH.. Ummm... weirdest thing, ok, so, it seems like the pay-as-you-go card updated something in my phone or, allowed something to update. Then I put in my normal SIM card and all is good. When my phone starts to act funny, then I pop back in the pay-as-you-go SIM card for a minute, then turn off my phone and then put back in my normal Softbank SIM card. WOW!!
Also, Supbro's iContacts, iDialer, GreenButton and Ashiqiqbal's Host v1.5 are awesome programs... I feel like a kid in a candy story who has been held back savoring the sweet smells of the candy for over a year, I am now just installing program after program on this phone, just playing with things, eating all the candy!
-kilisoefenhappy

What happened? I would REALLY appreciate any help.

Hey guys,
I'll try to keep this short. I have an HD2 that I've been running SD card Android builds with no problem. I didn't want to do a NAND flash just yet. I installed the EBL2.1a in Winmo and rebooted and all was well. I shut down, went back into Winmo, had it select the Gingerbread build I had on the card, to which it got to the Android logo, then just kept flashing the logo. I pulled the battery and now it wont turn back on! Just a black screen, just like its dead. I tried the reset button and tried a hard reset and still nothing. Any ideas?? I didnt think an SD card build could do any damage to the phone, so I'm really confused. ANY help/insight you could provide would be MUCH appreciated.
DISREGARD. I pulled the SIM and the SD card and now Its working again. WHEW! Weird.
Ugh. Scratch that. EBL just tried to load that gingerbread build again, and the same thing happened. I was trying to get it to select the proper Android build and somehow it selected the Gingerbread build not in the "Android" folder. Now its completely dead. Again. I removed the SD card and SIM and tried again with no luck. Im thinking it was just a time thing and I need to leave it for a while with the battery out. This is so weird tho. Hopefully it'll power back up again and I can just remove the EBL.
EDIT: Waited about 5 minutes and It's back to normal again. It's quite weird how an SD ROM can hard lock a phone like that. I'm not a developer, so I'm sure there's something I don't know, though.
EDIT AGAIN. Found the problem. It turns out the battery contacts are getting weak and bend a little if the battery is not inserted perfectly.
I know I'm basically talking to myself in this thread, but hopefully this little diatribe will help others who might run into the same issue.

Help me figure out why....

I don't see mention of it very often so I have to assume it's just me, but I have a terrible time with the radio getting borked out of the blue when I run any of the CM10 based ROMs. It will work fine for a few days, but out of nowhere, one I day I will turn the phone on and the radio will be messed up again. For example, this morning I installed the latest CM10.2 stable release. All was working fine... data, phone, etc. I got the ROM setup with all my apps and decided to make a backup. After doing the backup in recovery and rebooting, the radio no longer worked. So obviously I did something in recovery to screw it up.
Does anyone have any clue as to what I could be doing to cause this to happen so often? I want to run a CM Rom, but having to reset the radio once or twice a week is getting tiresome.
Thanks. For now i'll just reset the radio again and go back to stock and hope someone has some suggestions.
flyinjoe13 said:
I don't see mention of it very often so I have to assume it's just me, but I have a terrible time with the radio getting borked out of the blue when I run any of the CM10 based ROMs. It will work fine for a few days, but out of nowhere, one I day I will turn the phone on and the radio will be messed up again. For example, this morning I installed the latest CM10.2 stable release. All was working fine... data, phone, etc. I got the ROM setup with all my apps and decided to make a backup. After doing the backup in recovery and rebooting, the radio no longer worked. So obviously I did something in recovery to screw it up.
Does anyone have any clue as to what I could be doing to cause this to happen so often? I want to run a CM Rom, but having to reset the radio once or twice a week is getting tiresome.
Thanks. For now i'll just reset the radio again and go back to stock and hope someone has some suggestions.
Click to expand...
Click to collapse
There are some versions that lose connectivity/data connection but it's not a borked radio. Most of the time you can restore a working system by just turning off data for a minute and then turning it back on.
I am in the process of downloading the "stable" release from 2013-12-11, but my current nightly of 2013-12-10 hasn't had any hiccups.
I wish it was that simple for me. I can typically get data to work again when it goes out by doing what you said, but the ability to make phone calls never comes back unless I do the whole restore radio procedure. When I look at my phone info, it has my phone number listed as all zeros. It's a pain.
Thanks for responding...
flyinjoe13 said:
I wish it was that simple for me. I can typically get data to work again when it goes out by doing what you said, but the ability to make phone calls never comes back unless I do the whole restore radio procedure. When I look at my phone info, it has my phone number listed as all zeros. It's a pain.
Thanks for responding...
Click to expand...
Click to collapse
Ahhh, the 000-000-0000 number. Seriously, pull the battery. Don't shutdown, just pull it out, reseat, and turn on.
BTW, I installed the stable version yesterday and haven't had any problems. Flawless install, all of my apps still work and I didn't lose any data.
If that is all I needed to do, then I feel like a complete dummy. I guess I will reload the stable version again tomorrow and see what happens. Thanks for the info.
EDIT: I've come to the conclusion that i'm just not going to be able to run a CM10 based ROM. I have tried everything I can think of and/or read about on these forums and no matter what, I lose my ability to make calls using any of the CM10 ROMs. I know it's me because everyone else seems to run them fine, but I can't. It's a real bummer because I hate the stock ROM. I just don't know what to try anymore. I tried setting all the network settings as described in the directions (although I can't find the options for RIUU\SIM and NV mode anywhere). I triple wiped everything before flashing, I tried all the different CM10 ROMs and nightlys, I tried flashing with and without the sim card installed, etc. and nothing works. I get the 4G network, but my MEID ad phone number keep coming up as all zeros. It's very frustrating because the only reason I bought the phone off Ebay was to be able to run a CM rom.
I only have one thing left to try and I don't even know if it's worth it. Verizon sent me 2 4G sim cards by mistake so I have a spare sim card. I'm thinking of activating it and swapping out the old one in the hopes that it's a sim card issue. Although the current sim card works fine with the stock ROM so I doubt that's the problem but I don't know what else to try. Boy switching around to different ROMs sure was a lot easier with my old Dinc and Dinc2.
Have you tried running the latest RUU then flashing recovery and restoring? That seemed to solve a random reboot issue I was having, although I've never had radio issues. I have dirtyracun s-off, so it was pretty quick and easy.
flyinjoe13 said:
If that is all I needed to do, then I feel like a complete dummy. I guess I will reload the stable version again tomorrow and see what happens. Thanks for the info.
EDIT: I've come to the conclusion that i'm just not going to be able to run a CM10 based ROM. I have tried everything I can think of and/or read about on these forums and no matter what, I lose my ability to make calls using any of the CM10 ROMs. I know it's me because everyone else seems to run them fine, but I can't. It's a real bummer because I hate the stock ROM. I just don't know what to try anymore. I tried setting all the network settings as described in the directions (although I can't find the options for RIUU\SIM and NV mode anywhere). I triple wiped everything before flashing, I tried all the different CM10 ROMs and nightlys, I tried flashing with and without the sim card installed, etc. and nothing works. I get the 4G network, but my MEID ad phone number keep coming up as all zeros. It's very frustrating because the only reason I bought the phone off Ebay was to be able to run a CM rom.
I only have one thing left to try and I don't even know if it's worth it. Verizon sent me 2 4G sim cards by mistake so I have a spare sim card. I'm thinking of activating it and swapping out the old one in the hopes that it's a sim card issue. Although the current sim card works fine with the stock ROM so I doubt that's the problem but I don't know what else to try. Boy switching around to different ROMs sure was a lot easier with my old Dinc and Dinc2.
Click to expand...
Click to collapse
Do you have system select as automatic or home only? I have that issue when automatic is selected.
Sent from my ADR6425LVW using Tapatalk
I tried both automatic and home with same results. At some point i'll give it another try, but for now i'm going to stick with the Venom ROM because i'm getting tired of having to reset the radio. Some cold winter weekend day when i'm stuck in the house, i'll give it another shot.

No SIM detected. Wi-Fi and Bluetooth works sometimes

Hello! I hope everyone is doing great and I hope LG G2 mini threads aren't dead, which I doubt.
So my issue is that SIM card, afew months ago, just randomly stopped working. Tried all classical, to remove it, clean it, let the phone stay off without the battery, try different SIM, but all lead to the same result, no service.
Another issue, that just recently occurred, is that radio devices, like Wi-Fi and Bluetooth, don't work. After attempting to turn on any of them, the button turns on for a few seconds and then it turns off or something like that. Also MAC address isn't present. But here is the ridiculous fact. So I found out a way to get it functioning. Before booting up the system, I slam it on the back and sides and then gently turn it on. Great! The Wi-Fi works, able to connect to my home Wi-Fi and to play a YouTube video. Bluetooth also able to pair it with my PC, transfer files. It works 1/5 times that I've tried because after rebooting the phone, it just losses it.
Now I'm guessing it's because of the bad contacts on the both issues. Though a heat gun would help but I don't own one. Maybe a hair dryer could do the trick? Or maybe even cook it? Motherboard of course, not the whole phone.
Now I also should mention that it's got Lineage OS 15.1 unofficial running on it. That is actually when the issue with Wi-Fi and Bluetooth started to happen but that I'm guessing is just a crazy coincidence. Also it's LG-D620r
Did the problem start when you unlock the bootloader?
Have you tried flashing another ROM to see if it gets better?
Vagelis1608 said:
Did the problem start when you unlock the bootloader?
Have you tried flashing another ROM to see if it gets better?
Click to expand...
Click to collapse
The SIM problem started before flashing new rom. Everything was stock, but Wi-Fi and Bluetooth issues started after flashing the rom and recovery. But I haven't tried flashing new one, just the same one twice because I had problems with play services
Make a backup and flash a kdz and tell me if that fixes anything.
Vagelis1608 said:
Make a backup and flash a kdz and tell me if that fixes anything.
Click to expand...
Click to collapse
My priority is to fix the SIM issue and I doubt that installing the stock ROM will fix that. Like I've stated before, the SIM issue started before Installing Lineage OS 15.1. The version I was on was plus.pl, Poland's service provider, version of Lolipop 5.0.2 which was upgraded from KitKat 4.4.2, if I'm not mistaken
Assuming that it is not caused by the ROM or broken/incompatible drivers, then the SIM slot is probably broken.
Not much you can do about it. Not worth the money, anyway.
Vagelis1608 said:
Assuming that it is not caused by the ROM or broken/incompatible drivers, then the SIM slot is probably broken.
Not much you can do about it. Not worth the money, anyway.
Click to expand...
Click to collapse
Alright, at least I tried. Thanks anyways

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