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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?

[Q] Random shutdowns!

Within around the last two weeks, my Inspire 4g has been randomly shutting itself off. Not rebooting, just plain and simple off just like i had done a battery pull. I have flashed a few ROM's, but the all seem to have no effect. It seems to do it very excessively whilst Im at my house where I dont have very good reception (Have to out it in a window to text or call) almost rendering it useless, but only occasionally while Im out and about with good signal. I'm not sure if this is due to an undervolted kernel that has happened to be on every ROM ive tried, or if its a radio issue. I would really appreciate any thoughts! Im currently running Virtuous Unity, and my radio is 12.39.60.19U_26.06.04.06_M

You definitely need to update your radio. Try using 26.10.04.03. This is the gingerbread radio made for our phones. I think vu has the ril for 26.13.04.19, but either will work. Also make sure there is no overclock set as some phones can't hang. The undervolting could cause issues but not likely. You would see a lot more people with the same issue and you don't.

Well I succesfully installed the radio you suggested, but it was to no avail. It is still having the same exact problem. It only rebooted twice today while I was in school and had strong signal. But now that Im home, its going mad again. Ive noticed that if its left plugged in it wont tend to shutoff nearly as much, like when i have signal. Im pretty puzzled, and dont want to have to purchase a new phone. Im thinking of reverting back to the stock unrooted ROM and seeing if I still experience any issues.

Maybe your battery is failing and not delivering the right voltage. It would make sense that when the phone is on battery and has to do a full work load that it just crashes. PCs do the same thing when their power supply is going bad. Either that or the board. You could unroot and then reroot wiping your sd card too just to rule out software.

I just unrooted and am now back to stock GB ROM, and im still getting reboots. I installed about 20 mins ago, and have had 3 shutoffs. It looks like I may be ordering a new battery soon and if all else fails, looks like ill get to have some target practice! lol I just cant figure why it isnt doing it so bad when I have a good signal. I spent a weekend with a friend, had service the whole time, and didnt experience a single shutoff! It has just gotten so terrible within the last few days, i cant even use my phone at my house anymore!

I also just noticed that when i try to take a picture or video, it crashes. It may be the battery, since the camera uses a lot of battery. Hopefully that's my issue!

I have usually found random shutdowns or restarts to be due to a memory leak or a bad battery. I haven't seen anyone posting about a memory leak. I would bet it is the battery.
Sent from my HTC Inspire 4G using Tapatalk

Well Im about to go see if my local att store has a battery for it in stock. If they do, Ill see how it works and report back!

Mine was shutting off in my pocket at work. At the same time my sim card was going bad and would also randomly show the "restart phone or shutdown" msg. Finally replaced the sim and it stopped both problems so far.
Sent from my HTC Inspire 4G using Tapatalk

I think my phone has done that once before, but only like twice at the most. If the battery isnt the problem, ill try the sim. Ill have my brother put his sim in my phone and see if he gets the same results before i order a battery since my local att store doesnt carry any batteries and Id like a solution asap.

Well it turns out it was my battery after all! Really glad it wasnt anything major! I popped my buddy's battery in my phone, and shes running like a dream!

Thank you for your posts. I have been having a similar problem and I thought it was something I had done. I will get an upgraded battery and try that. This was very helpful for me.
Tom

I thought for sure it was going to be something that would require a new phone! Im waiting on my new battery in the mail. It should arrive tomorrow, and ill be back in business!

[Q] HELP! My Nexus S has no sound

It's just as the title states my nexus s sound isn't working! There isn't any sound at all. Ringtone/notification/media.
When i receive a phone call my phone vibrates but it doesn't ring and when i pick up the phone i can't hear the person i'm speaking to and they can't hear me either.
Had my phone since mid-october,and the first time i encountered this issue is when i put ICS on my phone at the end of december and its been an on and off thing since then but it would last for like 2-3 mins, and it used to be fixed by putting my phone on vibrate, lock it, unlock, turn the volume back up and it would work but that doesn't work anymore i even reverted back to GB and it didn't solve anything
so WHAT CAN I DO TO FIX THIS ? also, do you think it's a hardware or software issue ?

forgot to add whenever i try to use google voice search it crashes

If you plug in headphones, can you hear music? Were you using custom ROM or Stock? Have you tried installing a custom ROM with a complete wipe (factory reset)?

I'd put my money on software. Full wipe (data/factory reset, format /system, format /boot) and then flash your preferred ROM. See if it works after this.

Oogway13 said:
If you plug in headphones, can you hear music? Were you using custom ROM or Stock? Have you tried installing a custom ROM with a complete wipe (factory reset)?
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Click to collapse
Yup, even with headphones there isn't any sound and it first occurred on a custom ICS rom and yesterday I flashed 2 more custom roms with a complete wipe still no progress

Harbb said:
I'd put my money on software. Full wipe (data/factory reset, format /system, format /boot) and then flash your preferred ROM. See if it works after this.
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Click to collapse
just did that and unfortunately it still didn't fix the problem

skillz398 said:
just did that and unfortunately it still didn't fix the problem
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That's not good
You may be the very unlucky owner of a dead Wolfson chip in the phone. Is the phone still under 1 year old? Might be time to give samsung a ring and hope for the best. If you do decide to take it in, remember to flash a stock ROM and lock the bootloader.
Maybe someone else on the forum has an idea to help you though, but so far i'm afraid chances look slim. You could possibly try heating behind the battery a little with a hairdryer (not too much) and see if it would work afterward, it could just be a dry solder joint on the audio chip, but you'd still want it fixed.

Harbb said:
That's not good
You may be the very unlucky owner of a dead Wolfson chip in the phone. Is the phone still under 1 year old? Might be time to give samsung a ring and hope for the best. If you do decide to take it in, remember to flash a stock ROM and lock the bootloader.
Maybe someone else on the forum has an idea to help you though, but so far i'm afraid chances look slim. You could possibly try heating behind the battery a little with a hairdryer (not too much) and see if it would work afterward, it could just be a dry solder joint on the audio chip, but you'd still want it fixed.
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Click to collapse
*sigh* I feared that its a hardware issue and as far as warranty goes I bought it in 11/2011 and it was bought used so how much would it cost to get that fixed ? Also I restored my phone on a custom 2.3.6 from then rebooted my phone and the sound was working, then after a hour of inactivity, then I rebooted my phone and it started working and got greedy and flashed another rom then the sound was cut off again so should I have hope and try your method of drying ?

I have the same problem. Samsung Infuse 4g. I'm back to stock. Tried everything including GTG and Heimdall. (sigh) Sux. I hope u get urs working again, as I do mine. Saw another post where somebody dropped theirs and it starting working again. Better start praying... Good luck to u!

^^^^^^ i'm about to drop mine for an experiment lol

Hard to say how much. Might be easier to replace the whole board or just one chip, or just because it's too much trouble to find the problem. Also depends on shipping as you'd have to pay to send it to samsung, unless they have some kind of repair centre nearby where you can drop it off - and you'd likely be left without your phone for a couple weeks.
I'd be ringing samsung and asking all of this first. Afterward you may be able to get some quotes from a phone repairer if they can find the problem. These days it's often "throw it away and get a new one", and i'm afraid it's largely the same with phones despite what would be only minor problems/fixes.

OK, y'all. I've got news and info on this issue. First, i have the Samsung Infuse 4g. After trying everything possible short of throwing it into the river, I figured it was def hardware related. I, of course prayed & am convinced that is the real reason it started working, bit jic here is what I did. I checked online just to see (I'm not an idiot, I wasn't going to take it apart. Well, probably not). But I was still all for slapping and twisting and flicking the heck out of it. Then, I decided to look at the other side of it. So I removed the battery and there is a tiny little slit-like hole there. I got out a safety pin and just kinda wiggled of a bit mostly toward the inside of phone. Lo and behold sound was working when I turned it back on. I can't believe it! I'm so happy!
Sent from my SAMSUNG-SGH-I997 using XDA

OK, y'all. I've got news and info on this issue. First, i have the Samsung Infuse 4g. After trying everything possible short of throwing it into the river, I figured it was def hardware related. I, of course prayed & am convinced that is the real reason it started working, bit jic here is what I did. I checked online just to see (I'm not an idiot, I wasn't going to take it apart. Well, probably not). But I was still all for slapping and twisting and flicking the heck out of it. Then, I decided to look at the other side of it. So I removed the battery and there is a tiny little slit-like hole there. I got out a safety pin and just kinda wiggled of a bit mostly toward the inside of phone. Lo and behold sound was working when I turned it back on. I can't believe it! I'm so happy!
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
Glad to hear that
Sent from my Nexus S using Tapatalk

Ready to break this sucker open

Ok, I've been having some network issues, some of you may know. My service cuts off randomly and im quite sick of it. I've tried everything, nothing will fix it. I dont have an extra $400 laying around to RMA it. So, I am at the last resort. Its been fun, its a good phone, but at this point it really doesnt matter to me if i break it. I can get a moto g for $120 thqt will work like it was ment to. I really thunk its something wrong with the phone, I've never had this problem on tmobile before.
Anyway, im ready to crack this thing open and see if i cant fix it on my own. Maybe a connection is lose or something. I've watched a few videos, looks easy, ive popped my N72013 open so i im not worried.
Now, would anyone have any ideas what it could be? It acts like its a grounding issue, i can do just about anything, but when i download a rom, app, stream a video, anything that maxes out my internet, the service just completely drops, and says "no service" but usually comes back on after a few seconds. Sometimes the whole phone reboots. But, if is use 3g i never have any problems
So, any ideas on what to look for inside the phone? I was gonna unplug the wire for 4G and 3G, inspect maybe dust it off, and plug it back in.
If anyone has any ideas please fill me in. Thanks for your time.

Andromendous said:
Ok, I've been having some network issues, some of you may know. My service cuts off randomly and im quite sick of it. I've tried everything, nothing will fix it. I dont have an extra $400 laying around to RMA it. So, I am at the last resort. Its been fun, its a good phone, but at this point it really doesnt matter to me if i break it. I can get a moto g for $120 thqt will work like it was ment to. I really thunk its something wrong with the phone, I've never had this problem on tmobile before.
Anyway, im ready to crack this thing open and see if i cant fix it on my own. Maybe a connection is lose or something. I've watched a few videos, looks easy, ive popped my N72013 open so i im not worried.
Now, would anyone have any ideas what it could be? It acts like its a grounding issue, i can do just about anything, but when i download a rom, app, stream a video, anything that maxes out my internet, the service just completely drops, and says "no service" but usually comes back on after a few seconds. Sometimes the whole phone reboots. But, if is use 3g i never have any problems
So, any ideas on what to look for inside the phone? I was gonna unplug the wire for 4G and 3G, inspect maybe dust it off, and plug it back in.
If anyone has any ideas please fill me in. Thanks for your time.
Click to expand...
Click to collapse
They don't cash the 400 bucks, they just put a hold on it, I did it recently via a credit card, and the charge was quickly reversed.
I'd recommend replacing it, if you still don't want to do it (because of money), go directly through LG they'll have you send in the device and they'll fix it for you.
What you're suggesting is a last resort when you're out of warranty

Andromendous said:
Ok, I've been having some network issues, some of you may know. My service cuts off randomly and im quite sick of it. I've tried everything, nothing will fix it. I dont have an extra $400 laying around to RMA it. So, I am at the last resort. Its been fun, its a good phone, but at this point it really doesnt matter to me if i break it. I can get a moto g for $120 thqt will work like it was ment to. I really thunk its something wrong with the phone, I've never had this problem on tmobile before.
Anyway, im ready to crack this thing open and see if i cant fix it on my own. Maybe a connection is lose or something. I've watched a few videos, looks easy, ive popped my N72013 open so i im not worried.
Now, would anyone have any ideas what it could be? It acts like its a grounding issue, i can do just about anything, but when i download a rom, app, stream a video, anything that maxes out my internet, the service just completely drops, and says "no service" but usually comes back on after a few seconds. Sometimes the whole phone reboots. But, if is use 3g i never have any problems
So, any ideas on what to look for inside the phone? I was gonna unplug the wire for 4G and 3G, inspect maybe dust it off, and plug it back in.
If anyone has any ideas please fill me in. Thanks for your time.
Click to expand...
Click to collapse
Looks like u are not running stock kernel ? Dose that kernel run westwood or googles default cubic for TCP congestion ? And have u tried restore factory IMG and test ?

drawde40599 said:
Looks like u are not running stock kernel ? Dose that kernel run westwood or googles default cubic for TCP congestion ? And have u tried restore factory IMG and test ?
Click to expand...
Click to collapse
Yes, I've fastboot flashed stock 4.4.4, 4.4.3, 4.4.2, 4.4, tried different kernels, roms, called tmobile numerous times, changed sim cards, gone to different areas in town, you name it, I've probably tried it.

I had a similar problem with my nexus 5 it would be on LTE most of the time but after a few minutes of watching YouTube it would switch to h/h+/3g I did RMA through T-Mobile and this new one hasn't done it if you don't have a warranty your only choice is to replace the antenna or the radio hardware

So you are willing to buy a Moto G but not deal with Google RMA? RMA is free, a hold on your credit card is just that, nothing is charged unless you plan on skipping town with the 2nd Nexus.
Google support is one of the best in the business.They do everything they can possibly do to make your RMA as quick and painless as possible by cross shipping you the replacement device. If you have an issue with Google's RMA then you must have never been forced to RMA something before.

Its not that i have an issue with rma, its just, by the time i save up $400 and they ship me the new one, this phone will be obsolete anyway. The battery life isnt that good, its starting to get lcd bleed, ive read many people go through 5+ device and have the same issues. Im not saying its a bad phone, its the best phone ive ever had and ive had many good android phones im just saying, at this point it doesnt seem worth the time and effort, its like a 50/50 shot that ill get a good one.

Andromendous said:
Its not that i have an issue with rma, its just, by the time i save up $400 and they ship me the new one, this phone will be obsolete anyway. The battery life isnt that good, its starting to get lcd bleed, ive read many people go through 5+ device and have the same issues. Im not saying its a bad phone, its the best phone ive ever had and ive had many good android phones im just saying, at this point it doesnt seem worth the time and effort, its like a 50/50 shot that ill get a good one.
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It's like you're not listening...
It's a hold, not a charge.
ALSO.
LG (directly) will FIX / REPLACE FOR FREE. NO HOLDS YOU JUST SEND IT IN FIRST.

ericerk said:
It's like you're not listening...
It's a hold, not a charge.
ALSO.
LG (directly) will FIX / REPLACE FOR FREE. NO HOLDS YOU JUST SEND IT IN FIRST.
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Click to collapse
..::FACE PALM::..

Nope... not even going to try anymore

Please dont. You obviously dont get the point of my post.

Not sure if I know the point of your post either, but another option is sending your N5 for RMA first (that way there's no hold on your account at all) and wait for them to send you a new one. You can even buy a moto g use it for the week or two you won't have a phone and return it or something.
I understand that you're trying to see if anyone knows what's wrong but to me it's like a needle in a haystack. You're going to be opening up the device to look for a loose connection, but it could be something completely different. Maybe it's a hardware part that is malfunctioning in which case you would need to track down a replacement. This is why everyone is suggesting you just RMA because, speaking from experience, it really isn't a bad experience at all. If you really want to try and fix it yourself of course you're free to do as you wish since it is your device, but I highly doubt anyone on the forum will be able to say for sure what the problem is.

Sounds like you're in a fringe 4g area like me. A few blocks away I get full 4g. On my block, I get almost nothing. I constantly drops 4g, then picks it back up again.

I get a full lte signal nearly everywhere i go, it doesnt just drop 4g, it drops all service completely

[Q] [HELP-Stock ROM] Google Nexus 5 cell radio off. Cannot Make Calls, SMS, or Data.

Hi guys,
I've been a lurker on XDA for quite some time, and I just want to say, I absolutely love you guys. You're all very helpful and so knowledgeable. I can finally say I have an issue, I'm hoping is a software issue only, that I need help with.
Last week I was running Stock Rom Lollipop 5.0.1 on my Google Nexus 5 and now I cannot get a GSM signal AT ALL. No Calls, No SMS, and No Data. The same SIM card can work just fine on my unlocked Nokia Lumia 635. I am long past my RMA. What can I do to try getting the GSM to work and TURN ON MY GSM RADIO? I'm sure if the radio turns on, everything else should work as well.
Brief History: Phone has been dropped on cement before and got Screen replaced. My internal speaker got loose and I just got it readjusted by a nice technician near where I live. I've survived with this phone from Day 1 until now with some cosmetic wear-and-tear, but it was only from last week before I left work, AFTER I UNPLUGGED MY PHONE FROM THE WALL SOCKET that the GSM signal just dropped.... permanently. And what I mean by this is, the "radio" is off permanently (I cannot turn it on even with the option in *#*#INFO#*#* with SIM card inserted) even after reboot, airplane mode on/off, and APN setup (which can never be saved and hangs when selecting automatically 'detecting'). Note: The Phone can charge just fine and connect to the computer perfectly fine as well (in case you guys think it may be related to the microUSB port assembly). I have been taking out my SIM frequently, so I'm still not 100% sure if it is or is not my SIM Card Reader pins that have an issue.
I have fastbooted several factory images on this device many times from the Google factory images repository, mainly going back and forth between 4.4.4 and 5.0.1 which I believe are the best releases so far IMO. Even after installing the factory roms on this phone, (no root) I still get no signal no matter what I do. When I remove my sim card tray from the phone, I get "No SIM Card". When I put it back in, I get that message going away, which gives me the impression the SIM card reader is fine. My technician took a look at the entire phone hardware and said he didn't find ANYTHING strange. He tried using a known working back-cover with antennas to debug the issue but that didn't help. I don't remember what he said about the sim card reader, but I think that was also fine (will double check next week). When I got the phone back from the tech, he just told me that there are no "hardware" issues he knows of, and so this must be "software".
Any leads you can give me? I'm pretty tech savvy, and do understand things like partitions, fastboot, adb, etc, so any solution, even abstract, I'm willing to try. Google reps were pretty clueless on helping me out here, so I'm looking for some support, please!
I've also heard that this issue is not uncommon on Nexus 5. Is this true? How many users have been having this issue? I thought Nexus 5 should have been built great to last a long time... guess I was wrong.

hisaam-san said:
I've also heard that this issue is not uncommon on Nexus 5. Is this true? How many users have been having this issue? I thought Nexus 5 should have been built great to last a long time... guess I was wrong.
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Same situation on my Nexus 5 that started a few days ago. Thought it had something to do with the 5.1 Lollipop update and saw some users were having similar problems. Tried flashing different radios/basebands/roms/kernels to no avail. Currently running 5.0.1
Hoping it is not a hardware problem, going to take it to a local technician today. Also beyond warranty. Everything else works fine. Has always been in a hard case but dropped a couple of times with no prior issues. Any insight?

5.1 is the best software. If it's not hardware all I can suggest is a full factory reset. My SD card was not acessable and pple said try this and that command. No luck. Did a factory reset and got the SD back Oh and screen shots which had gone as well.
Sent from my Nexus 5