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Asus P525 - Invalid or missing sim card ???

Hi All, I've down a fair bit of web searching but haven't found a reason as to why this would be happening. So here goes:
Basically, I bought the Asus P525 when it was about 9 months old, and after about 4 months it decided to flash this up on my screen - Invalid or Missing Sim Card. It seemed to fix itself, however, and I had another week of using it. Then, it did it again, and fixed itself again shortly after, but it wasn't long before it was dong it so often that the phone became unusable. It would flash that up, and usually stay that way, it would become a rarer thing for it to fix itself. So, back to my crappy old nokia with half working buttons I went, telling myself I should ring an Asus repair center and talk to them about it. Anyway, a couple of months later I got around to ringing them, they told me they'd probably have to replace the mainboard, and it could cost me more to do that than to get a replacement phone. Not very impressed as I was, I decided to boot the phone back up, and amazingly it worked again, and gave me another week of usage before packing it in. Now it's stopped working, so I tried different roms and different firmware, to see if that would fix it... nope.
So here I am. Anybody experienced this? Any idea what I can do? I don't have heaps of bucks to throw around on phones, I really like this phone except for this obvious problem, so would like to keep using it. But I don't think the future looks bright for it
Any help is extremely appreciated.
Thanks
Matt

Seems I've asked the impossible...? Anybody have any ideas? I'm going out of my brain trying to work this one out...
Matt

It seems noone in this part of the forum likes to answer questions I'm afraid.
As to your problem, it's likely a hardware fault and theres a loose connection betweeb SIM and phone somewhere.
You could try cleaning the contacts with an electrical contact cleaner solution sprayed on a cotton bud and wipe the pins that sit on the SIM.
Maybe you could also try using a needle underneath the pins and gently pull them up so that they make better contact with the SIM (maybe some are bent).
Bear in mind, I have no experience with this device and the sensible option would be to take it to a repair shop for service.
Hope that helps.

yeah I know what you mean
Thanks for the suggestions. I have tried to bend the pins up but that didn't work. I haven't tried cleaning the contacts... sadly though I think that may not be the issue. I'll definitely give that a go, I'll try just about anything, because obviously if I can't get it to work it will just sit in my girlfriend's car so she can use the maps and camera on it. Seems such a sad waste really...
thanks again for your help
Matt

I just powered it up, and it's working again. God knows for how long though... could it be a battery or cpu issue?

"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] Inspire stops recognizing SIM

I read the threads of others having with their phones not recognizing their SIMs and none had a solution. I hope someone has figured out something other than getting another phone.
My Inspire was rooted by On The Go Solutions. It has Android 2.3.5 and Revolution HD 6.3.1.
At odd times it stops recognizing the SIM. I can't find any specific cause like running an app that might cause it. I've tried flashing a couple of different ROMs myself but that didn't make a difference. (I'm a lightweight on the tech stuff.)
The SIM works fine in 2 other phones.
Anyone find a solution to this problem?

I had this problem before. What worked for me and a few others that I know was to add a few layers of tape to the back of the sim card. This will make it extra tight in the socket. I guess the contacts on the phone for the card are just not that great for the connection. I have not had an issue since.

I tried a piece of paper and that didn't help.

BC1130 said:
I tried that and it didn't help.
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Click to collapse
Depending on How long ago you got the pone. Get them a call. I have had alot of dealings with On the go and they have always done right by me.

zelendel said:
Depending on How long ago you got the pone. Get them a call. I have had alot of dealings with On the go and they have always done right by me.
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Click to collapse
Using some of the info here, I have been working with the SIM and the phone and I may have finally got it working. I used a little rubbing alcohol on a thin screen cleaning cloth and cleaned the SIM contact and the phone's SIM slot, blew them dry and then reinserted the SIM with a very thin piece of plastic on top to set it in the slot tighter. It is VERY tight. The phone has worked for almost 2 days without a problem. If it works for a week, I'll consider the problem solved.

Cleaning the contacts and making the SIM tighter did not work. (

Cant connect networks! Help please!

So, bought the phone few days ago, and it arrived today. It seemed to work just right, I dont know who the modded the phone, but he did sim mod on it. After putting sim card to the phone it seemed to work just fine, connected to networks and stuff. So I decided to unlock the bootloader and put cyanogenmod on the phone. It worked fine for few hours but now I lost connection to sim card, and I shut down the phone. Took sim card out and put it back in, it did recognize it, but I couldnt contact to any networks, I tried to swapping to GSM only and stuff, but nothing seemed to help. I tried re-flashing CM, but it really didnt help. When I changed the connection type to GSM, it connected to the network for few seconds and then disconnected again. Im gonna try flashing stock rom on but seems like there is something wrong with the phone. Has anyone else had the same problem?
E: Couldnt flash stock rom on the phone using MIUI now and constantly getting messages for "SIM card removed"
So seems like problem is in the sim card holder.

Case of bad luck/coincidence.
Try applying pressure to the SIM (you can remove the back). This way you can find out if it's the holder. I had also had this problem. Not sure if it's a type of holder or just a bad mod. But Cornholio fixed it for me. Contact him, maybe it can be fixed easily. I just sent him my phone since I also had a Photon who needed a new mod.

Die Bruine said:
Case of bad luck/coincidence.
Try applying pressure to the SIM (you can remove the back). This way you can find out if it's the holder. I had also had this problem. Not sure if it's a type of holder or just a bad mod. But Cornholio fixed it for me. Contact him, maybe it can be fixed easily. I just sent him my phone since I also had a Photon who needed a new mod.
Click to expand...
Click to collapse
Probably trying to get the seller to refund to me, seems like he had same problems that I just got but he didnt tell me first, but started to tell me that he had just the same problems earlier. Well, I really wouldnt like to open the phone before I can see what he thinks about the refund.

Egez said:
Probably trying to get the seller to refund to me, seems like he had same problems that I just got but he didnt tell me first, but started to tell me that he had just the same problems earlier. Well, I really wouldnt like to open the phone before I can see what he thinks about the refund.
Click to expand...
Click to collapse
No need to open the back. Get a very thin knife or something like that. Pry it between the cover and the SIM. it will apply enough pressure to see if that's the problem.

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