Develop Bugs

havin' sim issues...

i just got my dash and it is actin strangely. it keeps goin between phone & flight mode and it sometimes turns off the phone function or says...''sim failure, sim card may be invalid or missing''. please help as i am getting irritable without my fone.

Maybe the SIM card has somehow become wet or unseated. Remove it, wipe it down with a soft cloth, and reinsert it. The problems may go away.

Take a pencil eraser and rub the SIM card contacts on the phone and SIM card itself.

thanks alot guys...
big thanks for the eraser tip. it still does it occasionally but i can use my phone again... thanks

ohhh booooyyyy....
it's at it again but the eraser thing wont even work so i'm back to square one.... and i tried to use the eraser on the sim contacts on the phone but i can't reach them to do it as they are behind this metal strip which i guess holds the card to the contacts. i did notice that the same metal strip is also soldered to the board, could there be another use? i was wondering if it was able to tell that the card was there via this bracket as well as by the pins on the sim port, if so maybe it was loose or something?(just stabbing at ideas)

Wolfdragon said:
says...''sim failure, sim card may be invalid or missing''. please help as i am getting irritable without my fone.
Click to expand...
Click to collapse
I once had this, I did a hard reset and that solved the problem. Make sure to backup your data first.

why dont you try another sim card form a friend or something.
like that you can determine where the problem is coming form.

Dash Freezing

Hello all,
I am new to forums and have been searching for sometime trying to find a fix for my phone. Yes, I used the search button before posting. Anyways, I recently got a dash from a co-worker of mine. When she had the phone it worked fine until she dropped it and cracked the screen. I replaced the screen in it and it work fine for a few days. All of a sudden it started freezing on me. I had to remove the battery and wait at least 10-15 mins. before powering the phone back on. Sometimes it wouldnt come back on for a couple hours. I thought it was an issue with the software so I updated to the latest version tmobile offers on their website. This still didnt work. I got a new battery for it (aftermarket) and am still having the same problems. It mainly freezes when ending calls or in the middle of calls. If I "reformat" (dont know technical term for phones) and reinstall software will this fix my problem?

Man, it sounds like you have gotten dust or some type of contamination inside the phone when you replace the screen. These circuit boards are not capable of having dust on these pieces on them. They don't handle well, things overheat quickly. So, I am sure when you make a call, the phone is at its peak power, hence heat.
So, if I were you, open the phone back up, check to see if it looks clean. Maybe, even blow it clean with a can of compressed air. Other than that. It never hurts to flash your phone with a new ROM, but fix a "dead" phone, I don't think so.
Good Luck.

I always start simple.
1. Are you using a memory card? Some cards just dont work well and the access time can slow a phone down alot and even cause freezing.
2. Sim cards can get dirty as well.. clean the contacts off and see if it helps
3. Since your co-worker dropped it, I would look for loose connections.
If all else fails flash a new rom and cross your fingers

Thanks guys. I will try and take it apart again to make sure theres not dust in the phone. There is no memory card so I can scratch that off the list. I will check the SIM card to mak sure its clean. Are these phones tempermental when it comes to clean SIM cards? I ask because my SIM card works fine in my other phone. Anyways, I did a hard reset yesterday and work for about 15mins and then restarted on its own several times. After it did this it finally shut off completley and now I cant even power the phone on or charge it. Looks like I have to suck it up and just buy one.

[FIX] Intermittent "SIM card not detected" error

Hi,
As you might have heard, there are several users having problem with their DHD that occassionally they get a "SIM card not detected" error, having to restart the phone, then the problem disappears but happens again after some time:
http://www.htcdesirehdforum.com/htc...starts-often-unable-to-detect-sim-card-error/
http://androidforums.com/desire-hd-support-troubleshooting/297925-sim-card-not-detected-error.html
I also had this problem, after checking the SIM card every time I found out that the SIM slot on the DHD seems to be a bit too loose. I am not sure if it's related to the DHD itself or some SIM cards are a bit thinner than others.
Anyways, since every time I faced the issue I found my SIM card to be slipped out from the slot by about 0.5mm, I decided to cover the SIM with special 3M plastic tape. Check my attached pictures for detailed guide:
If anyone's having the issue, it would be appreciated to find out if this prove to fix the problem for them as well. For me, I did not have the problem since I have done the trick (more than 2 months now). Make sure you cover both sides of the SIM card to prevent it from detaching when inserting (not overlapping the contacts of course), and insert the card very carefully not to damage the SIM slot.
Hope this helps for some

Glad to see no one had the problem lately

I have the problem since december. Till some days ago it didn't happen that often.. I'm gonna try it!
thanks

I'd really love for this to be a sticky, because it's damn useful! It worked with good old sellotape too! You just gotta be careful not to cover the contacts on the sim card, but the narrower tapes should be good enough!
Thank you!

Thank you to the OP!!
I was searching all over the net for a solution and finally brought it into a repair shop.
They replaced the sim holder. For a week or so it worked but the problem returned. Finally I decided to search the net, stumbling upon this thread. After taking normal, desk tape and wrapping it around the sim (not on the chip itself), I wedged it in and its been weeks without the problem!!
Thanks again.

There's a small piece of paper exactly same size as sim behind mine and hasn't happened since tweaked.

@ Springdale - many thanks for this top tip!!
I have been getting this "SIM card not detected" message recently, was thinking my phone was seriously malfunctioning. I tried you trick tonight, hopefully the problem is solved!
thanks again mate

Springdale said:
Hi,
As you might have heard, there are several users having problem with their DHD that occassionally they get a "SIM card not detected" error, having to restart the phone, then the problem disappears but happens again after some time:
http://www.htcdesirehdforum.com/htc...starts-often-unable-to-detect-sim-card-error/
http://androidforums.com/desire-hd-support-troubleshooting/297925-sim-card-not-detected-error.html
I also had this problem, after checking the SIM card every time I found out that the SIM slot on the DHD seems to be a bit too loose. I am not sure if it's related to the DHD itself or some SIM cards are a bit thinner than others.
Anyways, since every time I faced the issue I found my SIM card to be slipped out from the slot by about 0.5mm, I decided to cover the SIM with special 3M plastic tape. Check my attached pictures for detailed guide:
If anyone's having the issue, it would be appreciated to find out if this prove to fix the problem for them as well. For me, I did not have the problem since I have done the trick (more than 2 months now). Make sure you cover both sides of the SIM card to prevent it from detaching when inserting (not overlapping the contacts of course), and insert the card very carefully not to damage the SIM slot.
Hope this helps for some
Click to expand...
Click to collapse
This is just brilliant m8 , i fixed the Desire HD in a matter of seconds.
Super fix, hats off to you

I dropped my DHD recently and think it may have loosened up the sim card slot as I have been getting that message constantly over the last few days.
Just cut a thin bit of card though and popped it in beside the sim and was a much tighter fit so fingers crossed it's solved the probelm.
Many thanks for the tip

I am so happy that many of you found my thread helpful I'm glad I could help.

It worked for me as well!
Springdale said:
I am so happy that many of you found my thread helpful I'm glad I could help.
Click to expand...
Click to collapse
The buyer of a phone I sold inserted a micro/mini SIM card, extracted it, and must have widened the gap, and a sliver of paper fixed it!!!!

Springdale said:
Hi,
As you might have heard, there are several users having problem with their DHD that occassionally they get a "SIM card not detected" error, having to restart the phone, then the problem disappears but happens again after some time:
http://www.htcdesirehdforum.com/htc...starts-often-unable-to-detect-sim-card-error/
http://androidforums.com/desire-hd-support-troubleshooting/297925-sim-card-not-detected-error.html
I also had this problem, after checking the SIM card every time I found out that the SIM slot on the DHD seems to be a bit too loose. I am not sure if it's related to the DHD itself or some SIM cards are a bit thinner than others.
Anyways, since every time I faced the issue I found my SIM card to be slipped out from the slot by about 0.5mm, I decided to cover the SIM with special 3M plastic tape. Check my attached pictures for detailed guide:
If anyone's having the issue, it would be appreciated to find out if this prove to fix the problem for them as well. For me, I did not have the problem since I have done the trick (more than 2 months now). Make sure you cover both sides of the SIM card to prevent it from detaching when inserting (not overlapping the contacts of course), and insert the card very carefully not to damage the SIM slot.
Hope this helps for some
Click to expand...
Click to collapse
thanks a lot dude.
It solved my problem.
I thought "No Sim Card" error was because I flashed a new ROM.
But as you said I put plastic tape on the Sim Card and it made the trick.

Damn, man. You give second life for my DHD
<3

Thank you so much for sharing this. I'm going to go try this out too!

im using clear tape so maybe this is why.. but it not working

[Q] G2 SIM Slot acting up. Replace?

Tmobile G2. Started losing network every so often. Would need to reboot or sometimes switching to airplane mode and back would work. Then it just wouldnt work at all. Went to Tmobile store and they gave me a new SIM card. Tried that, and still no luck. SIM works fine in other phones.
I tried multiple cards, and they seem to work fine so long as I apply heavy pressure to (push down on) the card while using the phone. If I let go, the network drops within seconds. Must be the SIM slot itself..
Anyone ever replace the slot on a G2? I think it's soldered directly to the board, but I havent taken it apart yet. Hopefully it's just a few points that I can easily remove. Where can I get a replacement though? Anyone know parts that have matching solder poins?

yeah its soldered to the motherboard and unless you are amazing at soldering it will be tough, to top it off I've never seen one on ebay or amazon so you'll have to dig for one
Sent from my HTC Vision using xda premium

FuNKSioN said:
Tmobile G2. Started losing network every so often. Would need to reboot or sometimes switching to airplane mode and back would work. Then it just wouldnt work at all. Went to Tmobile store and they gave me a new SIM card. Tried that, and still no luck. SIM works fine in other phones.
I tried multiple cards, and they seem to work fine so long as I apply heavy pressure to (push down on) the card while using the phone. If I let go, the network drops within seconds. Must be the SIM slot itself..
Anyone ever replace the slot on a G2? I think it's soldered directly to the board, but I havent taken it apart yet. Hopefully it's just a few points that I can easily remove. Where can I get a replacement though? Anyone know parts that have matching solder poins?
Click to expand...
Click to collapse
I've been looking for the part too, had some luck just resoldering the old one, twice(!).
CAREFUL if you do this. AND DON'T push on the sim slot. This will wreck/crack the traces for the solder for the SIM holder itself. The holder is soldered to the surface of the MoBo. Mine (mobo) got damged on the second solder operation, some traces came off of the board. There is a place I found that will repair it for you for 89bux, but seems pricey to me.
http://www.repairlabs.com/htc-desire-z-sim-card-tray.html

looks like compatible sim holder
FYI
http://www.parts4repair.com/samsung-galaxy-note-sim-connector/
I'm going to order it (only 1 buk) and give it a whirl. Will post results.

what was the result?

Sim card tray damaged. Best way to fix?

I have a tendency to hop back and forth between phones. Today I went to put my sim card in my Note 2. I use a nano sim card adaptor (I decided to experiment with the iPhone 5 for about a month...) to put my sim card in my Note 2 and my Nexus 4. Unfortunately, the sim card fell out while I was putting it in my Note 2 today and the adaptor got stuck in the tray. After a few moments of agonizing struggle, I got the adapter out. Now my Note 2 won't recognize my sim card. I think the prongs at the entrance of the slot were damaged, since that's where the adaptor kept getting hung up.
Is there a way to find out if it's completely broken or if the prongs are just out of place? And if it's broken, does anyone know how much a repair would cost? I don't know that I have the confidence to try to repair it myself.
Thanks.
Sent from my Nexus 4 using Tapatalk 2

The SIM card reader module I'm fairly certain is soldered onto the logic board, so unless your good with soldering, a replacement SIM reader isnt very practical. However, the Sprint Epic Touch (GS2) sd card reader module is attached only by a simple flex cable, so its possible the same may apply here. If this were the case, the replacement part shouldnt cost more than 10-20$ (assuming their available) and replacement would be as hard as taking the back housing off.
Try comparing the SIM slot with another similar model and see if you can see if something is out of place. See see see see see see.:good:

I think I may have done the same to mine with one of those SIM adapters. I've ordered this and it should be here in a few days. I'll give it a go...
http://www.ebay.com/itm/OEM-Samsung...271792?pt=PDA_Accessories&hash=item1c313e9ef0

u did the same exact thing i did lol but what i thought was a damaged sim tray was somehow just corruted firmware when i restored back to stock everything worked just fine i even called samsung and they were going to replace it but since i live in Hawaii i didnt want to wait so i just did a restore in odin and everything works fine
if u are really damaged ur stim tray and dont wanna wait on samsung u can try this
http://www.youtube.com/watch?v=UT-2zrZ_aNo
but good luck try restoring with odin first

I'm glad I'm not the only one to have had this problem, heh heh.
Anyway, after watching the video, I think I'm going to send my Note to Samsung and have them fix it. I would probably ruin my phone if I did it myself. Should I do a factory reset to protect my data before doing so? I don't know if they'll be sending the same phone back to me, since it says they may replace it with another if they determine that they aren't going to fix the part that's broken.

blackplague1347 said:
I'm glad I'm not the only one to have had this problem, heh heh.
Anyway, after watching the video, I think I'm going to send my Note to Samsung and have them fix it. I would probably ruin my phone if I did it myself. Should I do a factory reset to protect my data before doing so? I don't know if they'll be sending the same phone back to me, since it says they may replace it with another if they determine that they aren't going to fix the part that's broken.
Click to expand...
Click to collapse
they will wipe ur data if ur rooted and have a custom rom on your phone u need to return to stock and set the flash counter to zero.
u would send the phone is no battery no battery cover no sim card so sd card just the phone nothing else
try to restore ur phone via odin first
http://galaxynote2root.com/galaxy-n...ootunbrick-galaxy-note-2-with-stock-firmware/
if u still get no sim card error after doing that then give samsung a call phone number is on the phone itself under battery and they will send u a box and u should have to wait about 2 weeks then u will either get a fixed phones or a replacement not sure how they do it since i fixed my no sim issue with odin

I did the same thing once. Just called att and told them it wasn't reading a simple anymore and they sent me a new one.
Sent from my GT-N7105 using Tapatalk 2

My Fix For Broken SIM Reader Pin
This is an old thread, I know. But the problem is ongoing. These SIM card adapters are just plain evil. Now that this has happened to me, I googled the issue and see that there are tons of folks suffering. I am posting this reply so that others can see the "fix" I managed for my International Samsung Note I. I am sure it can be applied to most other phones.
I should point out that in order to get any usable access to and visibility of the SIM card reader I had to remove the battery cover and the back from the phone's touchscreen. This reveals the motherboard to which the SIM card reader is soldered. I found a good video on this at YouTube. It wasn't that hard although I did not have the plastic pry bar they used - I think I will get one for the future. I managed with a small flat head jewelers screw driver and an ancient, plastic shirt collar stay. (I can hear my mother saying "save it - you'll find a use for it!" I hate it when she is right.) Once complete I could move on.
At first, I tried to replace the SIM card reader pin that was broken off by the SIM card adapter with a tiny piece or rolled-up tin foil. I saw someone else reference this approach and it seemed possible and cheap. Alas, it did not work. After many attempts, the phone simply would not recognize any SIM card. I finally got to sleep at 3am.
I then found a piece of brass shim stock that I have had lying around for years. (I am hearing mom again!) It is item 1412110231, Brass Strip .016x1/2inx12in shown here. I got mine at the local hardware store for some other aborted project. I used some snips to cut off a tiny strip from one end and then cut that strip to maybe 1/3 to 1/2 its overall length. The idea was to place the strip inside the SIM reader slot where the pin had broken off in an effort to create a contact point to replace the pin. Cutting the tiny strip off the stock piece caused the tiny strip to bow a bit. It turns out that was a good thing but I had to reduce the amount of bow quite a bit for it to fit inside the reader. Remove any rough edges from the tiny strip with a file.
With the touchscreen assembly lying flat on the table I managed to get the tiny strip in place. I was then able to slowly and carefully slide the SIM card into the reader and this resulted in a contact good enough to make the phone again recognize the SIM card and for cell service to be restored. Hurray! Yes, I was able to carefully place the battery in its bay and operate the power button to perform testing.
But you must remain aware that the tiny strip is just lying in the slot and is held in place only by friction/pressure from the SIM card inserted into the reader. Therefore, for the rest of the phone's life, it requires great care when removing the SIM and handling the phone when a SIM is not installed . Basically when removing the SIM, the phone MUST remain flat on its display until the SIM is re-installed. Moving the phone around in other orientations without a SIM card installed will definitely cause the tiny strip fall out. And who knows what hell that will cause?
You cannot put the phone's back onto the touchscreen with the SIM card in place. At first I thought about cutting the SIM's length down so the back would install even with the SIM in place. Before doing this I tried to carefully snap the top portion of the back onto the touchscreen while it all remained flat on the table so the tiny strip wouldn't move. With the top 1/3 of the back snapped on, I could just manage to insert the SIM through the phone's cover and have the tiny strip held in place by the SIM while I snapped the rest of the back into position. This worked pretty well but your mileage may vary.
I basically plan to leave the SIM in place forever - even if it is not to be used. I also put a reminder note on the battery so that I am less likely to forget that I made this hack.
I hope the annotated photos help those who follow me - as surely others will do. Good luck. I was very lucky to have destroyed only one pin and for it to be in the most accessible part of the SIM reader.