Universal keeps losing the SIM - JASJAR, XDA Exec, MDA Pro General

My universal has had a tough life. I bought it on EBay with a cracked screen and a twisted neck. I have put a new screen and LCD cable into it and it works fine as a pda, but when you switch on the phone you get between 0 and 10 minutes of service before:
"The SIM card is missing"
pops up and all connectivity to the world (except wifi) drops out.
I have done a whole lot of googling and think I have one of two possible issues: 1. A hardware fault in the mainboard
or
2. A flashing issue.
In my attempts to solve this, I have flashed the radio ROM at least 10 times with many different versions. I have also reinstalled Buzz's 0.00 version and re-run the unlocker but still the problem persists.
If it is a hardware issue, the only solution I can think of is to bake the motherboard at ~190degrees to try and reset any weakened solder joints but this is obviously a bit drastic! Can anyone suggest any other software/firmware issues that I might try? I thought that perhaps something in the unlocking process had corrupted one of the deep down registers since although the device shows as SUPERCID, I cannot execute the d2s commands and get an error saying "not allow" from the bootloader.
Anyone got any ideas?
Thanks,
John

Fixed!
I followed the advice here:
http://forum.xda-developers.com/showthread.php?p=1757576
and it now works great. Time for some serious hacking!
John

Related

NoGSM after phone drop

I recently dropped my 8525 hard enough to throw battery out of phone. I reinserted battery and started phone. Though I lucked out as everything seemed to work until I couldn't make a call. During boot I get "no GSM" instead of a battery version. I have done a hard reset, but it didn't help. I going to try to install a new ROM and if needed try to flash a new radio.
Anybody else have this problem? I am afraid it is a hardware malfunction in the radio.
If I cannot get this to work (I have already bought a new phone) I will be more then willing to donate (just pay for shipping) the phone to anyone who would like to work on it or test things on it. I have one half good battery and one good battery as well. Like I said everything seems to work but the actual phone. Let me know if you want it.
meh, that is not good news my friend, hope you get it fixed!
if it is a no go however, i wouldn't mind taking it off your hands
best of luck,
tbae2
Try to reflash original or stock rom. Go with the carrier rom you are supposed to have. It might work as there have been reports to indicate this.
Hope it works for you.
Cheers...
I have recently gone through similar problems, there are numerous things that can cause the NO GSM error on post. So here is the complete solution:
1. Some hard drops can jostle the antenna connection on the board, (a dodgy way of testing if this is the issue is to give the phone a shake and a few soft resets, the NO GSM error will sometimes disappear and state your radio version). There are numerous service manuals that describe how to disassemble and reassemble your handset (read the forums). It sounds scary at first, but so does not having a working phone (be sure you are out of warranty first). You will want to get some electronic circuit board cleaner and give the area around the golden clip on the top left (back facing up) a good spray (while you are at it, why not clean out some dust scroll button detritus). Then dry and reassemble, taking care to force the antenna all the way into the clip.
2. If step one really scares you or you are still in warranty, skip straight to here. A program called mtty (i use vers 1.42 , check the forums) can be used to interrogate the board logic from the bootloader, there are numerous tasks that can be used to clear registers and check gates for errors (for lack of a better word), the wiki has a great entry on all these.
3. A reflash of the radio and maybe even the os isn't a bad idea either... although remember that the latest radio may not be the best for your area/network (READ THE FORUM on this too)
Let us know how you go with it all, and good luck
if you need any further assistance PM me.
ultramag69 said:
Try to reflash original or stock rom. Go with the carrier rom you are supposed to have. It might work as there have been reports to indicate this.
Hope it works for you.
Cheers...
Click to expand...
Click to collapse
This was my idea last night as well. Froze on bootloader. I tried to also Install new radio but also a no-go. I am now downloading a new ROM without radio to see if I can get something other then bootloader. I will keep posted.
I can take the phone apart if I need to, I will make it a last resort. I am not afraid to though as I already have a new phone.
Seeing as I still cannot figure out how to make a ROM to contribute (vista and lack of programing skills) This would be a way I can assist If it would be more useful to someone here not dismantled I would like to look into it.
Update:
The radio hardware must be bad. I cannot flash a new radio or any rom with a radio. Schap's EM6 is working fine. I am going to look into discodergenson 's suggestion of taking the phone apart.
Schematic Diagram
Hi, I have a HTC 8525, with the same problem, doesnt start phone module.. anyway, in my phone, the sim card is not detected. Anybody have schematic diagram for this model? Or any other htc model, for reference.
I think this problem can be caused by dry solder in the driver of sim card, must identify it.
Thanks in advanced
(Sorry for my bad english)
datachaos said:
Hi, I have a HTC 8525, with the same problem, doesnt start phone module.. anyway, in my phone, the sim card is not detected. Anybody have schematic diagram for this model? Or any other htc model, for reference.
I think this problem can be caused by dry solder in the driver of sim card, must identify it.
Thanks in advanced
(Sorry for my bad english)
Click to expand...
Click to collapse
I don't think a bad SIM card connection is a problem. Without a SIM card the phone still needs a radio connection to make 911 calls.
also obviously I only have a t8 and higher, not a t6 which is needed to take phone apart. I will update when I get phone apart.

Dropped Hermes-Shows No GSM and Other Problems

I dropped my phone from a low distance and now on the bootup screen it shows a message saying no GSM. The ROM version is 1.34.502.1 but on the radio version tab there is no number or anything. On protocol version there is also no number or letters. Also there is nothing for the IMEI. I cannot open up the program (phone) or text anyone. I have tried a hard reset and some soft resets but those did not work. My sound quit working too.......
Also if this helps, i have WM5
OS 5.1.195(build 14955.2.3.0)
Wifi - works
Bluetooth - works
All other Programs (besides phone) - works
All i want to know is if i can fix GSM and if i can then sound and my broken LCD are very small problems.
Thanks
ZZsk8erZZ said:
I dropped my phone from a low distance and now on the bootup screen it shows a message saying no GSM. The ROM version is 1.34.502.1 but on the radio version tab there is no number or anything. On protocol version there is also no number or letters. Also there is nothing for the IMEI. I cannot open up the program (phone) or text anyone. I have tried a hard reset and some soft resets but those did not work. My sound quit working too.......
Also if this helps, i have WM5
OS 5.1.195(build 14955.2.3.0)
Wifi - works
Bluetooth - works
All other Programs (besides phone) - works
All i want to know is if i can fix GSM and if i can then sound and my broken LCD are very small problems.
Thanks
Click to expand...
Click to collapse
Before assuming something very major, let's be sure all the routine things have been tried:
1
Hard reset - you've tried that, but it's worth trying again, but first try number 2 below
2
Remove the battery from the phone for 30 minutes or so and reboot after doing number 3 below:
3
Remove the SIM card, clean the contacts. Insert and re-insert it several times. This cleans the contats on both the card and the phone.
As you say the sound is likely just a loose connector and the LCD, just a case of getting the correct make (there are at least 3 non interchangeable brands)
Mike
I'm afraid your phone still did receive hardware damage Looks like the radio chip soldering is the least reliable (on certain models?) and can be easily broken, thus so many people have the dreaded "No GSM" problem and are unable to flash a new radio.
I think it's just your SIM-Card, which has loosen due to the drop.
I dropped my Phone so many times, i stopped counting. It now looks horrible scarred but it works like the first day i bought it.
playdo said:
I think it's just your SIM-Card, which has loosen due to the drop.
Click to expand...
Click to collapse
In that case, the phone would just display a "No SIM card" notification. But since ZZsk8erZZ's Hermes displays "No GSM" at boot time, I'm afraid the problem is more serious than that. At any rate, it wouldn't do any harm if ZZsk8erZZ checks how securely is his SIM card inserted into the slot.
I added a few pieces of paper to the sim to push it against contacts but that didnt work. Ill try to reflash radio and if not then... i will have to go with my razr. How i wish i could use my 8525. Thanks anyways.
You can do a few things to get it back. First you have to open the case - a task that should take a few minutes with the right tools - the instructions are posted here and everywhere. Once open - RESEAT EVERY CONNECTOR and put it back together. If it doesn't work (ie still NO GSM) the motherboard is damaged and no amount of flashing will bring it back. These things are VERY sensitive and although they were made for road warriors they weren't built for them. The boards are multilayered and the connectors aren't (except for the dpad) screwed down. The flexiribbon cable is also a very weak design and cracks over time when you slide the keyboard in and out.
If the board is damaged you can do a few things - if the case and screen/keyboards are in great shape - buy a totally cosmetically trashed unit and put in the motherboard into your phone - otherwise strip it for parts and sell them on ebay - there is a market for dpads if working, flex cables and other small bits including the rear antenna plug - even small case bits will fetch some cash. Add it up and go shopping for a decent 8525. Supplies seem to be dwindling and prices are still pretty high though for unblemished fully working units. Just ask the sellers ALOT of questions before jumping in. They may say the unit freezes sometimes or there are a few working defects in these I'd walk away.
I got stuck with a TYTN HERMES 200 where the seller said everything was fine but it would freeze sometimes. Got the phone - was pristine but had the NO GSM error sometimes then fully died in a matter of days. Fortunately snapped it up for only 45. Bought a working HERMES 100 AT&T for 40 locally which worked perfectly except the seller messed up the LCD.
NoGsm Herm200
Hi!
I do have also a broken Herm200. I have droped it from the table, and since then I have NoGsm error when booting. I have tried several rom flashing but every time it stops on 12% flashing. Even when I did it with microSD was the same.
IPL - OK
SPLASH 1 - OK
SPASH 2 - OK
EXTROM - OK
GSM - when gets here the flashing stops.
OS -
Before that I had tryed several hard resets, soft resets, different key combination, and many, many ways...but still NoGsm is present.
I am now seeking for a motherboard.
If you know anyone...
Thank you
pleas!!
hello
The message “NO GSM” started suddenly appearing on start-up and of course the phone is not functional afterwards.
[[Category:HTC_Hermes]]
Hello
Sorry for the inconvenience, but I have a problem in Device
I hope I help me solve it
I own a HTC Hermes, when start-up letter (no GSM) and then complete the boot
But rading SIM card
After the time is not responding
Perhaps needs a file (radio) or (rom) I do not know
I raise the files on the Web
(4Shared) or (Media Fire)
Thank you very much

Big problems with Touch HD

I have a UK supplied Touch HD from Orange and it`s going crazy!
Problem 1:
Backlight switches off without warning, touchscreen still responds but obviously you can`t see anything! Multiple hard resets will eventually coax the backlight to wake up, but the delay between power button pressed and the "first buzz" of life is around 20-30 seconds. Started happening when it was about 2 months old. Initially it was infrequent and I put it down to an installed software problem, but now every few hours. Other symptoms include the charging light failing when the backlight fails and there is usually an increase in heat around the case. Strangely however when I use it as a sat-nav and it is permanently charging the backlight never fails. I have tried a new battery, desktop charger, turned off fast-sleep, autolock, light sensor, full reset and removal of all my software and it still does it. Sometimes its OK for 5 days, other times it goes "dark" after 10 minutes.
All ROMs updated to latest versions. NB This started happening with the original Orange installed ROMS
My original solution to the problem was to run bootloader which forced the backlight on, but the long delay between on/off and start means this doesn`t work anymore.
Problem 2:
Screen display appears inverted and mirrored after pressing power button during operation. This is an infrequent problem but may be connected.
I live in Thailand now. HTC Thailand will no doubt take it and charge me $250 for a new motherboard whether it needs one or not. I can`t easily return it to the UK and I just hope somebody somewhere has some ideas?!?
I was just talking to another user with completely bizarre issues. What you are experiencing is totally abnormal. Just to make sure it's not a software issue- what SPL version shows up in your bootloader? Also, what rom are you currently running?
Please read next post
Please read next post
** OOPS my typing brain isn`t working today **
Thanks for replying. I had upgraded to:
2009_RUU_BlackStone_HTC_WWE_1.56.405.1_Radio_52.62.25.34_1.13.25.24_Ship
with soft uspl but last night I reinstalled the original Orange ROM, effectively factory fresh. (The HTC April update won`t install natively on the Orange variant of the phone) and the thing stayed on all night and didn`t go dark. However, this morning when I got the reply, I turned off the phone to get to bootloader and it took 3 battery removals to activate the backlight.
Anyways SPL is 1.14.0000
R 1.09.25.14
G 52.49a.24.26u
D 1.14.22273
Any suggestions would be gratefully received.
jamesmclean said:
** OOPS my typing brain isn`t working today **
Thanks for replying. I had upgraded to:
2009_RUU_BlackStone_HTC_WWE_1.56.405.1_Radio_52.62.25.34_1.13.25.24_Ship
with soft uspl but last night I reinstalled the original Orange ROM, effectively factory fresh. (The HTC April update won`t install natively on the Orange variant of the phone) and the thing stayed on all night and didn`t go dark. However, this morning when I got the reply, I turned off the phone to get to bootloader and it took 3 battery removals to activate the backlight.
Anyways SPL is 1.14.0000
R 1.09.25.14
G 52.49a.24.26u
D 1.14.22273
Any suggestions would be gratefully received.
Click to expand...
Click to collapse
So is the phone working properly again with the factory Orange rom? All I can tell you is that if you want to run the 2009_RUU_BlackStone_HTC_WWE_1.56.405.1_Radio_52.62.25.34_1.13.25.24_Ship rom you must have a base SPL of 1.54.0000. Even if you use USPL to flash the rom to bypass CID-locking you still need to upgrade your SPL because the new 1.56+ roms are not compatible with an SPL version less than 1.54.0000. Read the guide in my signature for more information.
I see cRaCKwHoRe is on your case, so your in safe hands. I'll leave it to him.
One suggestion though. Instead of creating new posts and saying 'Read Next Post', why not just edit your first post and state 'EDIT' or 'Update' with new information below. This way thread remains short and easy to follow
Just an idea mate!!
Hello again. As I said in the previous post, reset to check the ROM version caused it to happen again. 3 Attempts to wake it up this morning. This afternoon another spontaneous backlight failure. I started to wonder if it could be connected to something on the flash card. So I took that out and it has behaved since then. But this doesn`t mean problem solved as it had worked ok for the 5 previous days with the WWE 1.56 ROMS.
Also, HARDSPL is being identified as a Trojan "heur" with Bitdefender.
jamesmclean said:
Hello again. As I said in the previous post, reset to check the ROM version caused it to happen again. 3 Attempts to wake it up this morning. This afternoon another spontaneous backlight failure. I started to wonder if it could be connected to something on the flash card. So I took that out and it has behaved since then. But this doesn`t mean problem solved as it had worked ok for the 5 previous days with the WWE 1.56 ROMS.
Also, HARDSPL is being identified as a Trojan "heur" with Bitdefender.
Click to expand...
Click to collapse
Most virus scanners show a false positive that USPL and HSPL are trojans or viruses. This is based on heuristics and how these utilities work. They are tried and tested and are most definitely safe.
And again I stress that you cannot run a 1.56+ rom on an SPL version below 1.54.0000. Since you are running SPL 1.14.0000 this is why you are having such issues. You need to flash a newer SPL version!
After the hardspl back to original Orange ROMS:
Anyways SPL is 1.14.0000
R 1.09.25.14
G 52.49a.24.26u
D 1.14.22273
I had 2 dark events. I wondered if there could be a problem with the memory card, so I took it out. My reasoning being, after it goes dark and is reset, something was causing it to wait 30 seconds before "smart mobility" and/or buzz (if the screens still alive). When my PC does that its usually because there`s a memory card or external hard drive confusing it. Took out the card and it was OK all night. Formatted the card this morning and had no problems all day.This is a guess, I am an idiot! But the memory card is the only ongoing part of my phone; internal storage and ROMs has been cleared or upgraded every month.I dont doubt my feeble attempts to upgrade to 1.56 and bypass HTC`s no upgrades for Orange handsets policy may have been a significant contributory factor. Interestingly, Orange are actively discouraging purchase of the HD, they have had too many problems with their handsets.
Going to keep the phone empty for a few days, no software, no sat-nav and see if I have any more events. Then I think will read your HARDSPL instructions far more carefully and retry the ROM upgrade. Excellent work by the way!
The odd thing about this telephone (apart from the inversion and mirrored display problem, which still occurs) is that following the nuclear option of total clearance and ROM upgrade/downgrade it will behave for an number of days and then the backlight dies again. It could still be hardware!
Going to keep my eye on things for a few days.
But if anyone else has had these problems with their HD or Orange handset, please tell! Maybe you aren`t crazy! To help this is a list of symptoms:
Spontaneous backlight failure but screen and phone responding
Simultaneous charging light failure
Delayed reboot 20-30 seconds before first buzz
Continued backlight failure requiring multiple hard resets to resolve
Weak vibration during failed backlight reboot
Inverted and mirrored screen at boot or after wake-up
Thanks!
Looks like a SPL problem only. It is responsible for the boot events and mismatched display drivers between SPL and the ROM most likely did it. Anyway interested in knowing updates once U flash a new SPL 1.54. and ROM..
Problems not resolved. Backlight dead again today. Multiple failures 10 minute interval. Totally fed up with HTC products. My previous HTC phone MDA Vario 2/Tytn/Hermes had to be replaced 4 times under warranty and until 2 weeks ago I used it when Touch HD died, now it has completely died as well.
Even in its "as-supplied" by Orange configuration the Touch HD won`t work now. May be I will try one more attempt at ROM upgrade. In the meantime I`ve just bought a cheapo Samsung sgh i200 for basic pocket PC functionality and just because it doesn`t say HTC on it!
Windows mobile is great. Massive software library and great to customize. But in my experience HTC make lousy unreliable products!
jamesmclean said:
Problems not resolved. Backlight dead again today. Multiple failures 10 minute interval. Totally fed up with HTC products. My previous HTC phone MDA Vario 2/Tytn/Hermes had to be replaced 4 times under warranty and until 2 weeks ago I used it when Touch HD died, now it has completely died as well.
Even in its "as-supplied" by Orange configuration the Touch HD won`t work now. May be I will try one more attempt at ROM upgrade. In the meantime I`ve just bought a cheapo Samsung sgh i200 for basic pocket PC functionality and just because it doesn`t say HTC on it!
Windows mobile is great. Massive software library and great to customize. But in my experience HTC make lousy unreliable products!
Click to expand...
Click to collapse
That's really unfortunate. Seems you have bad luck, consistently
Most people really like HTC devices. They do actually make some pretty decent stuff. Seems you've just gotten rotten luck.
Taken it back up to 1.56 with Hardspl as suggested. Installed Dutty 3.4. And it worked... For one night! Dead again today. I think now it is a hardware fault. So I suppose she`s off back to HTC and I will have to pay some money.
I have been very unlucky with HTC products. I said before I had to have 4 HTC Hermes, thought it would be interesting to tell what was wrong with them:
1. Orange SPV3100 WM5. First generation Hermes 100, hopeless wifi, buggy, returned to store and refund.
2. MDA Vario 2. WM5 Upgraded radio version, better wifi. Decided it didn`t like being a telephone anymore and the radio died after 3 months. Returned to store.
3. MDA Vario 2. WM5 Factory replacement. Dead memory card reader, didn`t make it out of the store when I went to collect.
4. MDA Vario 2 WM6 (Hermes 300). Working wifi, a much better operating system. A real telephone. Lasted 18 months! 2 weeks ago, complete power failure for no specific reason. Won`t charge or do anything now.
But before Nokia and iPhone customers get too smug. I also had an iphone when they were first released in 2007 (1.02) and that was a bug infested piece of junk as well. Got stolen in Bangkok. I really do miss having to reinstall the OS every 2 weeks! And my brother`s Nokia N95 has spent more time with Nokia than with him. 8 visits to Nokia care.
And now I have a broken Touch HD, probably with a power supply issue!
All these phones have one thing in common. They were (with the exception of the Hermes 300) first generation examples. And just before you rush out and pay big bucks for the latest telephone from HTC or whoever... Think, was this phone ready for release? Or was it just rushed out to keep the shareholders happy?
Think about it...
Hell! finally I found someone with the same problems. But I have bought it just some days ago!! The only thing I have done since then: installing tomtom on my sd-card and setting this gps-signal thing to the value 3000.
when I bought it i tried to run it in the store: after turning on, black screen but still vibration when i pressed some button, so it must have been on. Then it suddenly worked, installed the system, everything perfect. yesterday i installed tomtom, today it probably "died" around 20 times. everything the same like already described, screen messed up, after turning on vibration after 30 seconds, god!
is there anything i can do? i just bought that thing
Spontaneous backlight failure but screen and phone responding
Simultaneous charging light failure
Delayed reboot 20-30 seconds before first buzz
Continued backlight failure requiring multiple hard resets to resolve
Weak vibration during failed backlight reboot
Inverted and mirrored screen at boot or after wake-up
Click to expand...
Click to collapse
Sounds like you have the exact same problem as my HD: inverted screen, screen blank but still functioning etc...
http://forum.xda-developers.com/showthread.php?t=520781
I am waiting for mine to happen more frequently before sending it away for service. Otherwise they will just return it if they can't reproduce the problem.
Pretty sure it is a hardware problem. I am in Australia and have the original stock ROM.
We may be onto a new fault here. Just noticed 2 more threads with the same screen issues. My phone has been OK for a few days, but today screen won`t wake up at all. Hooked it up to Pocket Controller Pro and it`s reporting a "microp version mismatch 0" in its dark state. Been checking on other websites and this seems to have been a problem with Touch Diamond previously. There doesn`t seem to be an update for microp firmware. One user tracked it down to a loose connection between screen and motherboard. I don`t know! I just wish it would work!
Any suggestions for MICROP issue?
Currently running Dutty 3.4 with 1.56 Olinex. But this has been a problem long before this ROM version.
Fallen Spartan told me this:
"Have you tried going to Start > Settings > All Settings > System > Power > Advanced and making sure device isn't set to turn off after a period of time?"
Until now my phone works without problems, I will report again after some days
Yup, tried that one. Doesn`t work. You will notice after you end a call, the screen will be dim. This is the warning of imminent backlight failure. It is not power management dependent. My problems with the phone started in Feb. Initially intermittent. Now constantly.
Sometimes the thing will work for a few days for no reason. Only way to guarantee no failure is permanent USB power. Pull out the USB and watch it die, instantly! That`s with the original or the new battery.
New motherboard may be the only solution. But it is worth noting that when I had problems with my Hermes and it had to go back to HTC 3 times, each time a new phone was sent. On the service report "New motherboard" was reported. The guy in the T-mobile shop told me they`re too expensive to repair so it`s easier giving you a new one. They still hold onto the old one for 3 weeks though!
Might try to repair the Touch HD, I still have my Samsung SGH. (It`s very slow!) but I think I will wait for ASUS or Toshiba phones with snapdragon processors. Had enough of HTC and don`t want another iphone.
This is a hardware issue. No if's, and's or but's. It is caused by a disconnection between the screen and the motherboard. A faulty motherboard or a loose / broken connector is the usual culprit. I would say 7 out of 10 times it is due to a loose connector. It is a poor design to begin with and after being dropped or roughed up enough it tends to break or get loose. HTC typically just replaces the motherboard in a warranty repair situation.
If you are lucky and just have a loose connector and are comfortable with opening up the device yourself, you can disassemble the device and re-connect or re-solder the 2 port connector that connects the motherboard with the screen. Of course this will "void" your warranty so I wouldn't recommend doing this unless you are comfortable working on micro-electronics. If your case is the type where it is intermittent and it works sometimes and then sometimes not, then you have a loose connection and it just needs to be reconnected or re-soldered.
I have seen and fixed a couple of these now.

Jasjam dropped, now "No GSM" error

Hi everyone,
I have a Imate Jasjam, which has served me well over the last few years. It was running Windows Mobile 5 with the Telstra upgrade that was sent out a while ago. A few days ago, however, I dropped it a short distance, and suddenly the phone function stopped working. Initially I wasn't even able to open up the phone application, but a few soft resets later, that now works. Unfortunately when I start it up, it says "No GSM". There is nothing written in the Device information about Radio version, Protocol Version of IMEI.
I did a hard reset - no joy.
I thought it might be to do with my rom version, so I installed HardSPL, flashed to Black Satin (as I'd always wanted to try that one), but still no luck. The same problems persist.
Does anyone have any ideas what I can do, or am I stuck with a PDA instead of a phone?
Thanks so much for your help!
Paul
My apologies for bumping my own message, but I wondered if anyone had any further suggestions. To clarify, I have tried the various wiki answers, but I'm assuming that because this was caused by trauma rather than flashing that it may well be a hardware issue. Is that a fair assessment?
Thanks again,
Paul
I think thats a fair assessment, its possible the radio may have popped out of its connection. Might be an idea to open up the hermes and check.
If flashing a stock ROM and radio doesn't fix it, then sorry to say but it's busted (unless you can fix the hardware part of it). Have an 8525 with the same problem.
Thank you for the responses. I'm game to have a play with the hardware, but wondered if there was a good guide to getting to know the inside of my phone anywhere. I'd appreciate it if someone could point me in the right direction!
Check mikechennon's guide he provided to deassemble the phones.

Dopod838pro NO GSM problem

i have my dopod 838 pro running on Schap's WM6 Pro 4.30 ROMs. it had been all right for pass 5 month since i upgrade the original WM5 to WM6. and since then i never flash it.
Yesterday afternoon, i can still use it to receive call. but at night. i found out that the phone doesn't have any signal on GSM network. when i double check it, it asking me to key in sim card password and said "unknown sim status"
if i key in the wrong password, it will state that my password is wrong. but if i key in the correct password, it still asking me for password. and stay on the same page no matter how many times i key in the password.
i already do hard reset. but the problem still exits. these were info when i start the phone.
M 05
S 04 NO GSM
B 06 D3.62
and these were info from bootloader
HERM 100
IPL-1.04
HERM100
SPL-2.10.Olipro
i very confuse with a lot of help over internet in thread for those no GSM problem. but i can't seems find any similar problem with mine.
WIFI and bluetooth were working fine. i can still goes into the Today screen and access every other things normally.
Please help me.
Do you know what Radio was on the device before the no GSM?
If you try to update your radio more than likely it won't update and freeze at a low percentage of completion. Sorry to say the radio on the motherboard is dead or dying. Happens frequently on the Hermes and the only way to fix it is to get a new motherboard. Happened on mine - would work fine then the GSM would start dropping out and reconnecting during the day. Upon reboot it would get the NO GSM message. Turn off leave battery out then try again - sometimes would start up then it would just die. After replacement of motherboard it just works.
No amount of flashing of ROMS including or not including the radio will fix it - the chipset in the HERMES is the weak link and they eventually just go. Either the solder has developed cracks from charging (heat) or flex.
Sorry.....
Wam7 said:
Do you know what Radio was on the device before the no GSM?
Click to expand...
Click to collapse
i not pretty sure . but it was original radio. i didn't flash radio before.
but i had downloaded the new version radio. successfully flashed it. but still no GSM.
STIM141: i think you are quire right. i had inquiries some shop of phone repair and have describe them my problem. since my phone die without me doing anythings to it. they pretty confirm it's the mother board die. they said the only way is to repair it and replace motherboard.
The best way to fix it cheaply is to find a donor phone thats confirmed working with a guarantee on eBay. Something that beat up, maybe the screen has problems and swap it out yourself. Its pretty easy to replace and you can do it in about 10 to 15 minutes tops. Need a couple of tools but they can be found locally. Should cost no more than about 30-35 dollars if you are patient. Next would be to scrap the phone for parts - but if the motherboard is bad you probably won't get very much unless you part it out and just wait for individual buyers.

Categories

Resources