Database Info

"No Sim" ?!?!?!?!?!?!?!?

Hi guys,
using this device for a couple of month now without problems
today when I was driving I guess I pressed something wrong 'cause the phone network settings popped and I accidentally chose the wrong provider and now the phone says there is NO SIM!!!! ahhh
Tried shutting it down, restarting it, taking battery & sim out, resetting the phone for yesterdays settings, resetting it to manufacture settings and nothing helped still a message saying NO SIM
so.......... I got to options either the sim went dead in the middle of the day 'cause I told it to use a different provider then mine or the device is a goner.............
tried installing an old sim (not 3.5G) and it still said NO SIM
what say u ?
oh and pls help me
thanks

have you warranty for your phone? looks like you have hardware failed.

well I think the device is in warranty (two and a half month old) the problem is that it was a prize in a competition in the grand nation of america and we are far away from there.....
could it be malfunctioning in the software ?
I am upgrading the rom now maybe it will reslove itself

well updating the Rom to the latest with WM 6.1 didnt solve my problem
is there anyone here who has a similar problem with this or any of HTC devices (Lost the ability to recognise SIM cards) ??????

I've seen a few posts on this forum, complaining on a SIM troubles. If i remember correctly, the reason has been a bad SIM holder socket or something similar. Try looking for those forum threads for more info.
Anyway, the first thing i would probably try is carefully cleaning the SIM socket contacts as well as the actual SIM card contacts with alcohol or something, just to make sure it isn't just a bad contact.

I have been there. My device has been repaired twice and works fine now. The last repair concerned the socket indeed. Maybe that's your problem as well, so check:
- does your SIM work in another mobile?
- does another SIM work in your TC?
- did you clean, reseat your SIM card, try a few times!?
Good luck!

I've polaris too and i've already replaced the sim socket, which malfunctioned..2 weeks after replacement weird things started to happen. I would loose coverage while having a conversation in a place, where all bars are full. Then, after restarting the phone it would show that no sim is inserted AND here's the funny part, after the next restart, the device would return to normal. I could make calls for another day and then it goes again..Right now a week has gone by while i'm restarting my phone every day. The problem is, that right now i need to restart my phone 3-5 times for it to start working normally again (without saying that no sim is inserted).
I can't work out why would this be happening, because if it would be a bad socket, i couldn't use it again after restart, but i CAN.
Can anyone give me advice? Maybe there's a virus from which you can't recover just by flashing the rom

I had the same issue! Therefore I had the phone 3 times in repair under warranty and the issue wasn't rapaired until the third time! All together the phone was in repair over more than 2 months!
I'm pissed off on this lousy service at HTC!
I'm hoping for you not to have such a misfortune then I...

I had the same problem after dismantling.
For me it was that the SIM cable that is going to the motherboard was way to inward. I just withdraw it a bit and that did the trick.

try to install new radio..
if still doesn't works, maybe ur htc hardware problem

I agree with wakhairul2,
if it's not the Radio Rom (GSM depends from it) so it's the hardware!
if it's the second, this is common, Simcard Holder Flex for the Touch Cruise fails easily! but it's also very easy to find a cheap spare..
Anyway, if you have warranty and is less costly then go there..
Else, for a new Simholder hardware check the ebay, Click here to view
You can find for lower than 15 Euros.
Good luck

[Q] Intermittent "No SIM Card-Emergency Calls Only"

Alright everyone, I've Googled my brains out (not in a dirty way) and haven't found any real resolution to the above issue. I've tried all the usual suspects; replacing the SIM Card, cleaning the SIM Card, adding tape to the back side of the card to ensure good contact, replacing SIM/MicroSD PCB Board, fresh Wipe of ROMs and Radios, etc. None of those things have had any real results except replacing the PCB-it seems to be less frequently occurring with the new SIM tray. Does anyone have any other ideas? I'm willing to try just about anything.
Thanks in advance.

mrfeuss said:
Alright everyone, I've Googled my brains out (not in a dirty way) and haven't found any real resolution to the above issue. I've tried all the usual suspects; replacing the SIM Card, cleaning the SIM Card, adding tape to the back side of the card to ensure good contact, replacing SIM/MicroSD PCB Board, fresh Wipe of ROMs and Radios, etc. None of those things have had any real results except replacing the PCB-it seems to be less frequently occurring with the new SIM tray. Does anyone have any other ideas? I'm willing to try just about anything.
Thanks in advance.
Click to expand...
Click to collapse
How often does this happen?
It only happens to me when I have to change the network mode. I've rarely seen it other except for maybe when my phone finds an LTE signal.
Otherwise, it could be the antennas. My mom once dropped her Samsung Focus and the antennas got screwed up.

Hangampalli said:
How often does this happen?
It only happens to me when I have to change the network mode. I've rarely seen it other except for maybe when my phone finds an LTE signal.
Otherwise, it could be the antennas. My mom once dropped her Samsung Focus and the antennas got screwed up.
Click to expand...
Click to collapse
Sometimes it'll happen through several reboots within a few minutes. It'll also happen when my phone is sitting, untouched, on my desk. There shouldn't be any network mode switching if my phone isn't moving.

mrfeuss said:
Sometimes it'll happen through several reboots within a few minutes. It'll also happen when my phone is sitting, untouched, on my desk. There shouldn't be any network mode switching if my phone isn't moving.
Click to expand...
Click to collapse
The only thing I can think of is to flash back to Stock AT&T software and see what happens. If you still have the same problem, it's most likely an antenna issue and you might be better off buying a new phone.

Time to return to stock and see what happens. Ugh, what an annoying issue.
EDIT: After returning to stock and installing TWRP I ran the stock UCMC1 software for a little while without incident. While I was setting up CM I got the dreaded "No SIM-Emergency Calls Only" message. I'm at a loss here. I guess it might just be time to start shopping for a new phone.
EDIT: I'm going to try running *SHUDDERS* stock Samsung/AT&T software for a few days to see if the problem persists. I'm pretty skeptical that this is a software issue, though, since I haven't seen too many people reporting this issue.

Good effort
Given all your efforts in eliminating various variables, I'm starting to believe Hangampalli is probably right and it might be a Hardware issue.
But it is a simple observation to stay on a solid stock ROM like the recent UCMC1 (original att version) for a couple of days and see what happens.
You remind me of myself with my Samsung Galaxy S (Captivate) random shutdowns last year. I chewed up all the threads at XDA back to back and tried anything, and it still did it ... but we all know when to quit.
Cheers to your efforts:good:
I727-UCMC1-CM10.1

Well after about 20 minutes into running the phone on UCMC1 Stock my phone came up with the same stupid error. I'm going to see if AT&T is willing to do anything for me since I just got this phone as a replacement in October. But if not, I guess I'll be phone shopping. :-/ Such a shame because I really love this phone and its community of users and devs.

mrfeuss said:
Well after about 20 minutes into running the phone on UCMC1 Stock my phone came up with the same stupid error. I'm going to see if AT&T is willing to do anything for me since I just got this phone as a replacement in October. But if not, I guess I'll be phone shopping. :-/ Such a shame because I really love this phone and its community of users and devs.
Click to expand...
Click to collapse
its the phone, is it still under warranty

I got the phone as a replacement from AT&T (bad headphone jack, last time) in about October. I'm going to try to see if they'll replace it for me. Fingers crossed.

Ya I have had this same problem. Changing ROMs fixed it for me though.
Sent from my SAMSUNG-SGH-I727 using xda premium

AT&T apparently warranties their replacement devices for 90 days or until the end of the original device's warranty, whichever is longer.
What does that mean for me? I'm boned. I guess I'm stuck with my iPhone until I buy a new phone. It's going to be hard leaving this great community of Developers and Users and shedding such a great device.

Humm... I wonder if I have the same problem, is there any tests you can do to see if it is the sim card tray or something like the attenna ? I seem to have service sometimes, not all the time.

[WARNING] PMA Wireless Charging defective on LG G3

As many of you know, the AT&T LG G3 is not like the rest of the G3's when it comes to wireless charging. The AT&T unit uses the PMA standard and not the QI type chargers.
Unfortunately after spending a few hundred dollars on wireless chargers and 2 Quick circle cases, I have discovered that the charging unit on the phone is defective.
I purchased 3 Duracell Power-mat chargers along with 2 quick circle cases.
First LG G3 with Circle case charged fine for the first day then failed. I guessed it might have been the case so I purchased new case and tried the new case on a new Power-mat - The phone did not charge. No charging light, no charging animation
I exchanged my LG G3 at best buy and tested the wireless charging in store - and the existing cases and the new LG G3 charged just fine.
After 24 hours the phone stopped charging... I tested my iPhone 4 and the battery packs and on the Power-mat and both charged fine.
Once again I exchanged the phone and used the new Circle case to charge - this time the wireless charging worked for a couple days and again this morning it stopped working.
I went back to best buy and was able to confirm that the circle case and the power-mats are all working and its the actual phone that has stopped working for the third time. 3 phones out of 3 phones have failed after no more than 48 hours using wireless charging - I have also noticed that others in the non-branded LG forum are having the same issues with the PMA charging.
I contacted LG and the lady wants me to send in my phone and be left with out a phone for a couple weeks so that they can repair it and see if there is anything wrong with it.
Please chime in if you are having the same issue.

Equipment involved in testing:
3 x LG G3 (AT&T) - all three failed
2 x LG G3 Quick Circle Case for AT&T - both still functioning and work on new AT&T LG G3's
3 x Duracell Powermat - All three still work with iPhone 4 and Galaxy s3 with case
Contact information for LG
800-243-0000

Thats something.
Your Canadian neighbors are using pma too.
Maybe lg finally realizes PMA IS JUNK.
I cant even find a pma case here in canada.
Always have to look at AT&T case.
I .... AT&T. Don't need there logo on my phone
Sent from my LG-D852 using XDA Free mobile app

neverends said:
Equipment involved in testing:
3 x LG G3 (AT&T) - all three failed
2 x LG G3 Quick Circle Case for AT&T - both still functioning and work on new AT&T LG G3's
3 x Duracell Powermat - All three still work with iPhone 4 and Galaxy s3 with case
Contact information for LG
800-243-0000
Click to expand...
Click to collapse
Thanks for starting the thread!!!
I gave ya thanks also. I talked to Customer Service yesterday at AT&T and I have to now bring my phone to a repair shop to Tuesday due to the Holiday. I talked to the repair center and they said that basically that I will have to be sent a new phone, because although the person I talked to believed me she said she would have to call att to get me a new phone sent because they don't stock the LG G3 obviously. It sucks that I am gonna have to flash my phone back to stock and what not. Obviously there is a major problem with the phone and Powermat charging. I hope LG figures it out and its just a hardware fix. Maybe something is tripping software wise and blocking it from charging. I would almost bet its software because it seems like it wants to connect when you first place it on the mat it makes a sound then disconnects. AT&T put something in the software and the hardware of the phone to block QI charging so I guess they didn't do enough testing with the software to block the QI on the ATT phone. I think it's ridiculous to force someone to use Powermat and not give you the option to choose because ATT is part of the powermat alliance or whatever the crap the group is called. The only way powermat will take off is if the i-sheep include it as a feature in the Iphone 6. It is rumored that NFC may be on the Horizon for the new Iphone and you can bet your ass if they add wireless charging it will be that powermat crap. The only good thing is we will see accessories out the azz for powermat if iphone got wireless charging.
Anyways Great thread 5*
Leroy

I was on the phone with ATT for an hour to get a replacement. They said since the phone charges correctly with the cord it wasn't anything wrong with the phone. I had to speak to a supervisor as well as an LG rep to tell ATT it was a hardware issue and that it was covered under warranty just to get a refurbish phone sent to me. Looking at this I want to send back the referb and keep my original phone knowing its bound to happen again. Maan this sucks. I like my wireless charging.

I picked up the LG Quick view case and powermat charger from Att store 2 weeks ago. No issues at all except I noticed my battery life was cut in half. Not sure why but I quit using them both and battery is back what it was. Both are going on Ebay.

Well the day i click the link on to read this forum is the day my wireless charging stopped, this must be a software issue cause how can it just stop right out of the blue, I'm blaming this thread for stopping my wireless charging when i read it lol, seriously there must be a way to get it to work. Is it confirmed that it is the phone and not the case? I was wirelessly charging for about a month.
Sent from my LG-D850 using XDA Free mobile app

Neverends,
Where were those other generic threads you were talking about that people were starting to have the same problems? I am just trying to do more research but have yet to find any other threads discussing this same problem. On another note I guess 2moro I will get another phone ordered, heck maybe I should wait because I would hate to keep blowing thru phones if it ends up being a software issue.

can you try a factory reset? I have a feeling this issue is like so many other little quirks of the phone (things that just stop working all of a sudden) and it's a software issue (like the Aux cable issues)

screwyluie said:
can you try a factory reset? I have a feeling this issue is like so many other little quirks of the phone (things that just stop working all of a sudden) and it's a software issue (like the Aux cable issues)
Click to expand...
Click to collapse
I was gonna do that b4 calling ATT back. I have read that it didn't help in another thread. I am rooted so I have got to flash back to stock anyways. I bought a new router and tried flashing dd wrt on it so it's got My phone flashing behind today already. I will report back after I get it flashed back to factory settings though.

neo4uo said:
I was gonna do that b4 calling ATT back. I have read that it didn't help in another thread. I am rooted so I have got to flash back to stock anyways. I bought a new router and tried flashing dd wrt on it so it's got My phone flashing behind today already. I will report back after I get it flashed back to factory settings though.
Click to expand...
Click to collapse
I had the same exact issue. Worked fine for a month and then all of a sudden one day stopped working for no apparent reason. I tried factory resetting and this did not work. Had to fight with AT&T to replace the phone as they just don't get it. Finally was replaced and works fine again. Let's see how long it lasts this time...

phonehead6720 said:
I had the same exact issue. Worked fine for a month and then all of a sudden one day stopped working for no apparent reason. I tried factory resetting and this did not work. Had to fight with AT&T to replace the phone as they just don't get it. Finally was replaced and works fine again. Let's see how long it lasts this time...
Click to expand...
Click to collapse
Apparently there is some competent people that work there. I actually got someone that knew about the issue. He remoted into my phone and looked for a reading and said yep I see there is an error with your wireless charging. I played stupid and am glad I flashed back to factory.
oh ya by the way going back to stock no root did not fix anything lol. Anyways the rep got me a new phone shipped out no hassle or problems at all.
He actually told me that they knew what was wrong and said that it isn't going to affect many people because a lot of people are not going to wireless charge if there is any truth to that, but that an update would not be pushed out for awhile for the fix. He said the new phone that they are sending me will not stop charging. Anyways we will see how that goes.

screwyluie said:
can you try a factory reset? I have a feeling this issue is like so many other little quirks of the phone (things that just stop working all of a sudden) and it's a software issue (like the Aux cable issues)
Click to expand...
Click to collapse
Factory reset and restore using LG tools does not help
Sent from my LG-D850 using Tapatalk

neo4uo said:
Apparently there is some competent people that work there. I actually got someone that knew about the issue. He remoted into my phone and looked for a reading and said yep I see there is an error with your wireless charging. I played stupid and am glad I flashed back to factory.
oh ya by the way going back to stock no root did not fix anything lol. Anyways the rep got me a new phone shipped out no hassle or problems at all.
He actually told me that they knew what was wrong and said that it isn't going to affect many people because a lot of people are not going to wireless charge if there is any truth to that, but that an update would not be pushed out for awhile for the fix. He said the new phone that they are sending me will not stop charging. Anyways we will see how that goes.
Click to expand...
Click to collapse
Wait a min so someone for at&t said this? And how did they remotely connect to it and check if the wireless charging works or if it shows and error cause that would actually help to pinpoint if its hardware or software, from the looks of it its faulty software that screws up the hardware cause if they send that ota and it doesn't work on phones that stopped wireless charging then it sucks. Hope that when that fix comes it restores phones that had the issue. That rep just answered one question but opened the door to a whole lot more.
Sent from my LG-D850 using XDA Free mobile app

bolillo said:
Wait a min so someone for at&t said this? And how did they remotely connect to it and check if the wireless charging works or if it shows and error cause that would actually help to pinpoint if its hardware or software, from the looks of it its faulty software that screws up the hardware cause if they send that ota and it doesn't work on phones that stopped wireless charging then it sucks. Hope that when that fix comes it restores phones that had the issue. That rep just answered one question but opened the door to a whole lot more.
Sent from my LG-D850 using XDA Free mobile app
Click to expand...
Click to collapse
That he did but from his choice of words which I could not by no means quote verbatim, he acted like it was software that messed up the hardware. He did get on my phone remotely because I had to give him access. It was pretty neat a little great play button overlay came up in the middle of my phone and stated an agent can see my screen. You know in the end your right...all he did was give me a reason to ask more questions but I had way much to do and still do than to talk to him. If my new phone bugs out then I am gonna have to make time to find out.

From my experience with multiple phones and multiple cases, I do not believe it is a software issue... I believe the actual hardware fails.... I do think see how restoring using LG flash tools would not resolve a software glitch
Sent from my LG-D850 using Tapatalk

Fyi there is an att remote service installed on these phones by default so yes they can remote in. Ugh this blows as it just happened to me.
Sent from my LG-D850 using Tapatalk

neverends said:
From my experience with multiple phones and multiple cases, I do not believe it is a software issue... I believe the actual hardware fails.... I do think see how restoring using LG flash tools would not resolve a software glitch
Sent from my LG-D850 using Tapatalk
Click to expand...
Click to collapse
But no means do I actually know what's going on but anything is possible. It could be a situation where a software setting being set wrong could has caused a piece of hardware to short out. Ex: The software setting for allowed voltage was set to high and shorted a resistor for the hardware that controls wireless charging voltage and when the rep remotes into my phone he saw a reading of "null". So to sum up a software problem caused irreversible hardware damage.
One thing I can say indefinitely is the rep I dealt with said there was a memo on it and when he remotes into My phone he immediately within 30 seconds found what he was looking for and confirmed I needed a replacement phone. He then said it was a software problem that couldn't be corrected at the time.
I just hope the New phone I get is corrected, as he assured me it would. Who knows if it will. I hope whatever the cause LG and AT&T either finds the solution or have already.

Interesting, this insinuates a software change on the refurbished handset. Are you going to end up with a different build number? How long till it shows up in official builds? (These are just out loud musings.) Sorry to hear that there's yet another poor implementation on this phone. I think they were trying too hard to get out in front of Apple's announcement and the IFA.

neo4uo said:
But no means do I actually know what's going on but anything is possible. It could be a situation where a software setting being set wrong could has caused a piece of hardware to short out. Ex: The software setting for allowed voltage was set to high and shorted a resistor for the hardware that controls wireless charging voltage and when the rep remotes into my phone he saw a reading of "null". So to sum up a software problem caused irreversible hardware damage.
One thing I can say indefinitely is the rep I dealt with said there was a memo on it and when he remotes into My phone he immediately within 30 seconds found what he was looking for and confirmed I needed a replacement phone. He then said it was a software problem that couldn't be corrected at the time.
I just hope the New phone I get is corrected, as he assured me it would. Who knows if it will. I hope whatever the cause LG and AT&T either finds the solution or have already.
Click to expand...
Click to collapse
When it gets here you bet I will go thru it with a tooth in a comb to see if there is any difference maybe they actually changed a piece a hardware in the New one to compensate for a software deficiency. If it stays fixed I am sure we will find out the truth way later or possibly never.
One thing the rep did say is that if there is a software update it would be a while because not a lot of people were utilizing the wireless charging.

[DISC] Changing motherboards between different models

Hey everyone,
recently my SC-02h (Jap Docomo version) hard-bricked and has no way to recover besides JTAG or motherboard replacement.
This made me think of an experiment.
Can you replace any motherboard (which includes all chips and the storage) with another.
I ordered the g935FD dual sim version with the Exynos chip, this compared to my QC single sim version which is currently bricked.
Hopefully within the next few days I'll receive the motherboard and start the replacement process (I will probable film it) to see if it works.
If so, anyone could replace their motherboard by a new one that is unlocked or has a different chipset.
Please discuss here if you're also interested in changing your own mobo with another.

Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.

Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.

Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk

lyriquidperfection said:
Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.
Click to expand...
Click to collapse
Yea I ordered that one, although I thought the tray looks the same (bottom part), so until my new one arrives I'll use the older one.
the_scotsman said:
Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.
Click to expand...
Click to collapse
I checked the connections and they are the same, the only thing that differs is the sim holder and the chipset.
Also a new phone (unlocked) costs at least 2,5times more (live in Japan).
dogredwing1 said:
Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
I'll record it on video as soon as it arrives, also the process of taking it out and replacing it completely. So if it ends up in failure you can all see it.

In what way is it bricked? The S7 is almost impossible to brick.

CuBz90 said:
In what way is it bricked? The S7 is almost impossible to brick.
Click to expand...
Click to collapse
Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
Also no recognition in windows when connected to USB

totalvamp said:
Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
Click to expand...
Click to collapse
Can't get to download mode?

CuBz90 said:
Can't get to download mode?
Click to expand...
Click to collapse
Well if I could I wouldn't be ordering a new MoBo
Even made a USB JIG

Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..

thedisturbedone said:
Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..
Click to expand...
Click to collapse
i should be fine, just get it glued back together properly.
besides i don't really care about it.

Unless the other components (camera, vibrator motor, various sensors, OLED Panel etc.) don't differ in the way they talk to the mainboard, I don't see why it shouldn't work. As others have said, I'd really love to see how it'll work out for you. So, thanks for sharing =)

Well it didn't work out, I put in the new motherboard but the phone didn't power on at all. There is also no led when trying to charge it. I'll be sending it back to the supplier and buy another version instead.

https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure

totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
Click to expand...
Click to collapse
Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.

totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
Click to expand...
Click to collapse
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.

murtaza02 said:
Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.
Click to expand...
Click to collapse
Well I tried a few times after that and after letting it on a charger, still no response.
nitrous² said:
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.
Click to expand...
Click to collapse
http://www.ebay.com/itm/MAIN-MOTHER.../182310990269?ssPageName=ADME:X:RRNTB:NL:3160
It should be one with an IMEI how else can it be unlocked.
I tried plugging it in as well, but my PC doesn't recognise it at all.
I've ordered a different one this time, this motherboard was also slightly different from the one I had (2 cables instead of 3) so it might be incompatible.
I ordered this one now: https://www.aliexpress.com/snapshot/0.html?orderId=82116420384467&productId=32737224430

Did you end up having any luck with the second motherboard?
Or has anyone else attempted this before?
I'm looking to swap my qc chip for the exynos.

How was the operation??
Hello i'm interested to know how was the experiment becouse i wanna try almost the same thing, i have a s7 sm935fd and i wanna change the motherboard for a sm935f model. Please answer me!

I am also going to try swapping motherboards. How did yours work out?
Hi @totalvamp,
I am going to try swapping out a good motherboard from a banged up sprint G930P phone with a clean IMEI into a clean, whole, G930X demo model that I picked up cheap on Ebay.
The "X" demo phones work on WIFI only. I understand that the "X" motherboards are missing the cellular radios, which is why I am trying this swap -- it should be far easier and less costly than doing a full screen&LCD replacement, which requires tearing down the entire phone, and costs about $150. Hopefullly, I will just have to remove the back, the QI receiver and I think the camera, and I'll get access to the motherboard.
My hope is that all the rest of the parts are present -- we'll see how it goes.
I look forward to hearing from you.
Philip

Question Sim recognition issue

Owned the phone for about a month now. Phone was working perfectly fine for the majority of this time. I use 2 different sims and they were both working smoothly until recently.
A few days ago, I woke up and the phone wouldn't recognize the Sim cards anymore. I took out the Sim tray, cleaned the Sim cards and the tray as thoroughly as I could and they both started working again. A few days later, I restarted my phone and both of the Sims stopped working again.
This time nothing I would do would solve the matter, so for the next few days the phone wouldn't recognize either Sim. I have unlocked the bootloader and rooted, factory reset it and updated it none of which seems to solve the issue.
I use this phone for gaming so last night to my surprise one of the Sims started working (sim was in for a couple of days) and all connectivity was perfectly fine - I tried putting in my other Sim as well but again the phone wouldn't recognize them anymore. Tried putting in only one card on the Sim 1 slot but it made no difference. I don't understand what the issue could be.

Do you have a converted CN version or did you buy a global version? (just curious, as far as I know only CN -> WW versions faced this issue and I would like to know if this is a coincidence or an issue with these versions. But I could be wrong as well)
Nevertheless I would make use of warranty and send it back to Asus to get it repaired.

Yeah it's CN version > WW ROM. It's absurd how randomly it was hit with this issue. Again, the phone was reading a sim card perfectly fine out of the blue last night, then when I took out the Sim tray to insert another card, went back to square one and wouldn't recognize either.

I know.. If you had searched this forum or the rog reddit you would have noticed there are multiple topics like yours and all people explained the very same. Seems totally random.. sometimes it works, sometimes not. Unfortunately no one was ever able to post an accurate answer of why this is the case or how to fix it. At least there is none here, on reddit or the zentalk forums.
Since all device so far were CN -> WW version I don't know any successful case. Asus mostly rejects the support and redirects people to their sellers but those mostly refuse to do something. (they probably know that issue and it's cheaper to do nothing)
I wish you best of luck. Maybe you could try to contact Asus and report the outcome so we finally have a documented successful repair.
Edit: as said, that's only my knowledge, maybe there is a fix and someone found a way but they either didn't publish it or they posted it in a not so well known forum.

I wonder if the connections that touch the SIM are poorly designed. If it is such a widespread issue that randomly seems to come and go, it could be similar to the issue I had with the Kunai 3.
The pins on the side are designed to give a little when sliding the controller off and on the mount or charger. After moving them between the mount and charger twice, some pins fell off and others never popped back into place so they could make a connection. It turns out they never secured the pins well enough to handle it.

Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.

r0me5 said:
Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.
Click to expand...
Click to collapse
Good tip and glad it worked - this could help a few out there. Perhaps ASUS should have included some instructions explaining how to press/bend the device back in order when it happens ...

I had the same issue and quickly found a fix. I bought a OnePlus 9 Pro and relegated this glitchy piece of junk to my desk drawer. Good riddance.

nickdagriff said:
I had the same issue and quickly found a fix. I bought a OnePlus 9 Pro and relegated this glitchy piece of junk to my desk drawer. Good riddance.
Click to expand...
Click to collapse
Paying over $2,000 for a OnePlus 9 Pro seems like an expensive solution, but I am glad it worked out for you. Best of luck over there.

r0me5 said:
Hello, I had a similar issue.
My sim-cards wouldnt be recognized, sometimes only one of them, sometimes both. Additionally, my fingerprint-sensor wasnt working too. By checking pictures of a disassembled phone I could locate the problem inside. It has a connector on the lower end of the phone, which is for sim and FP-sensor. I can definitely and easily come loose.
Quick and dirty fix for me, was pressing with controlled but quite some force on the lower end of the LED-Rog logo while the phone laying flat on the table. I used my thumb, pushed and restarted the phone to check. Didnt work, pushed a bit harder and restarted again until it worked. The back glass has some flex to it, to make it possible to push the connector back in. Still, be careful to not break it, if you try it yourself.
When I found that solution, I've sent it in on warranty for proper fixing with this Information to ASUS. They replaced allegedly the mainboard. But I actually think, they just fixed the connector in place, because bending the phone to a certain degree "unfixed" it in my case again. I dont know, if its the same issue you have, but if it is, hope it helps everyone.
Click to expand...
Click to collapse
Works like a charm here! Congratz!

Omg worked here too, now I have a Poco F3 AND a revived ROG Phone 5...

.

You are the mvp. I love this phone and using it for almost a year. Suddenly sim no longer detected. I tried everything, unlocked bootloader, update firmware. Hour and hours of trying to revive it. I even called Asus and they said to call the Chinese warranty support. Then finally came across this thread. Pressed down hard on the lower end of the logo of the phone on its back. Restarted and now it's detecting the sim again. Thank you so much