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Hi,
I recently had a Magician shipped which seemed fine the first day of use, but at the end of the day, the gsm radio icon showed me a no reception, or 'service unavailable' message...
Now, after upgrading the Rom's (several used) and Radio update to the latest one (1.13 as far as I can see), I don't have any reception or 'service' at all...
The gsm radio always shows the '!' marker...
Anyone any idea where to look?
Loose cable, loose or bad antenna, software/rom issue?
Any ideas are welcome!
This device will be my test-unit for xanadux, but I want to make sure it's functional before testing stuff and debugging things that will never work because of a hardware or firmware issue...
Thanks guys!
Great work, super forum!
this is clearly a hardare malfunction. your device may not be identifying the sim card.
thanks for the quick response, but I don't think it's the SIM-slot that is causing me troubles... The SIM card can be read without any problem, and the pin code is asked and aknowledged by the phone. Once in a while I get coverage, but it always looks like 1 bar maximum, while my Trinity is lying next to it, same operator, and all 5bars of coverage notification are there, so it's not that I'm in a dead zone or black spot where there's no cell coverage at all.
I checked the upper back part (after removing the plastic casing top) and checked where the antenna is connected. Once, while holding and pushing onto the metal part that looks like the antenna extension, I got (just for 5 seconds that is) a connection, and signal level of 1-2 bars, but that dropped and stopped after a few seconds already...
I think it's a connection issue of some kind, internal antenna or the connection to it, but I'm not that keen on taking the unit apart to find out it's not that easy to sort the issue out...
Any help, info, ... can help...
Thanks!
the metal plate just below the top-backside plastic panel acts like the antenna.On top side of it there are two legs which connect to the mainboard.try cleaning the two spots on mainboard and the contacts of antenna.
well, i can say this because i solved this problem once this way.
good luck.
Well, I tried what you mentioned: scratched and cleaned the squares on the pcb, straightened the connecting metal parts from the back plate, cleaned all contacts: no solution...
Any other ideas?
Possibly a sort of switch which makes the device choose between internal or external antenna? What external antenna might fit?
Thanks guys!
Well,
I got my hands on a 'broken' I-mate Jam (got stuck between the car door, screen is totally broken, pcb is fine) and replaced the antenna block: FULL RECEPTION...
at least, for half an hour.. after that: reception dropped, and again left me with the "!" mentioning "no service"
I tried switching the pcb's but for some odd reason, the screen didn't come up good... The backlight didn't turn on and the screen was all striped and smeared...
Is there a difference in pcb versions, connectors, screens?
I thought Magcian = Magician, but now I'm thinking there are different models around there...
Bon... so I'm looking for a pcb of a Qtek S100 now... to switch that one with mine, and see if that helps...
really strange the reception was 'perfect' for about an hour, I even succeeded in making calls with it! No jitter, no drops, perfect reception, and then: BONK, over with it... nothing left...
Any ideas on this one, or any ideas on how to get the I-mate's pcb working in my Qtek?
Thanks guys for the info and help!
EDIT: DISREGARD THIS. GO TO POST #3 and #4
Hello guys,
this is my first post so if I'm posting in the wrong section please bear with me.
I recently bought a T5388++ HTC diamond 2 clone. Everything was fine except that I couldn't get a GPS fix. (In the Start -> Settings -> System -> GPS Settings [Satellite State] I only had *red* satellites)
I used the "aluminum foil in the back side" fix, which worked well and I could get a fix.
Being an uneasy person I open the back cover of the cell phone to take a look (beware the headphone cables).
Now here is the good part.
On the left side (near the sd card and where the stylus ends) is probably the GPS antenna.
In the inside, on the board's side, there are two metallic "pins" which (when the cover is closed) touch the back of the antenna. What I did was to add some foil on the back side of the antenna so the contact with the pins would be more tight.
This worked like a charm and the signal is very good. I can even get a decent fix (3-4 *blue* satellites) from inside the house.
Sorry for the lack of pics, if anyone tries it, post a couple pictures and I can show you what I did exactly.
EDIT: DISREGARD THIS. GO TO POST #3 and #4
Pics!!!!
Here are some pics.
First unscrew the four screws, one at each corner of the phone.
Then slice the phone with the help of small flat screwdriver or some other tool. (there are some appropriate notches for that purpose)
**Beware of falling parts**
In the forth and fifth pic you can see where I install the alu foil.
Now you can close the phone and enjoy your newly found GPS!
[I also tried some solder, but the results where almost the same]
Congrats.
However, I can assure you that is not the GPS antenna. Based on the antenna size and shape (its a small inverted F antenna, see the black sticker that is attached to in on top of the stylus case) I am assuming it is either the Bluetooth or WiFi antenna.
The GPS antenna is a bit higher, it is the small pink 'cube' thingy on top of the phone, connected by the micro coax connector.
I had reported before the micro coax is loose in some devices, and I suspect you 'accidentally' fitted it better while opening and closing the phone.
But congrats on your successful operation anyway, being able to open and close the phone and still have a working one is already good, and often, just doing that and ensuring all connectors are clean and properly fit solves a all sorts of problems.
Yeap you are right!
I have read you saying this about loose connectors, so when i first opened the phone I refitted the micro coax.
In my defense I tried to see if this was the antenna. I disconnected it and opened the GPS. Seeing many satellites on the screen (red ones) I concluded that this was not the GPS antenna. (I thought maybe WiFi since I've seen this type of connector on my laptop's wifi)
But having read your post now, I tried a new experiment and found out that the "red" satellites appear, due to the A-GPS (with neither "my" GPS and THE GPS antenna).
Damn...
So could someone change the title to "OLD GPS reception fix"
I had the same problem with GPS. I have risked and have changed orientation GPS of the antenna - GPS perfectly works. BUT now the speaker in which I hear the interlocutor doesn't work for me. At other person after the assembly has broken touch the panel. Therefore it is better not to recommend to open phone.
onde consigo a rom do htc t5388+ idioma PTG ?
magicwolf said:
I had the same problem with GPS. I have risked and have changed orientation GPS of the antenna - GPS perfectly works. BUT now the speaker in which I hear the interlocutor doesn't work for me. At other person after the assembly has broken touch the panel. Therefore it is better not to recommend to open phone.
Click to expand...
Click to collapse
You changed the orientation of the antenna. In which way?
When I opened the phone to see if the connector is set right one cable to the speaker was dispatched (very bad soldering). I had to remove the old cable and solder another one because it was not only loose it was broken, too...grrrr...that's very bad.
But I was lucky and did't burned my phone
So, I also recommend to be VERY careful when opening the phone.
BTW: It is much simplier to open the T5388++ than my ASUS P535.
MicAlter said:
You changed the orientation of the antenna. In which way?
Click to expand...
Click to collapse
In a picture it is visible as I oriented the antenna.
cybermaus said:
Congrats.
However, I can assure you that is not the GPS antenna. Based on the antenna size and shape (its a small inverted F antenna, see the black sticker that is attached to in on top of the stylus case) I am assuming it is either the Bluetooth or WiFi antenna.
Click to expand...
Click to collapse
Can you please identify Wifi antenna? Look in attachment:
"C" is GPS antenna.
What is "A" "B" "D" ?
"D" - I see little piece of aluminum foil, but nothing else. Under this foil is place for stylus only and above foil is contact + Vibration Motor.
Somewhere I reed a tip not to hold the hand on the bottom of this phone during the phone call in order not to shield located there GSM antenna, so it means B is probably GSM. Are you sure C is BT and not GPS?
You're right. "C" is 100% GPS antenna. My mistake. (I've changed it now in original post.)
Well, my guess is B (at the bottom) is GSM, based on the fact it is larger (lower frequency) and seems to have two (one for the 850/900 MHz and one for 1800/1900Mhz), which leaves A and D for Blue and WiFi.
PS: Or GSM has two because it has 2 radio's? I wonder if they would share antenna or not, since it is a dual-sim dual standby, I guess the could share)
serak_hd2 WiFi probl.
If you have opened your phone already you can easily discover which one is wifi and BT. Just put a peace of paper on one contact (blocking connection), reassemble (screws are not necessary) and try connect to BT devise (compare to previous performance(distance)) if it is gone (or big performance difference), you blocked BT if not, it was WiFi. After you know which is Wifi, just try to ensure good mechanical contact from antenna till the board (bending contactors little higher or putting allufoil (aluminum can oxidize quickly, so it is not the best solution)). Try not to touch the board, some of the components can be sensible to static discharges. If you have not opened it yet, try to consider ones more the possibility to change it by your seller for new one.
problem with touch screen
t5388 + + touch screen does not work, but the image looks perfectly fine.
How to fix this?
thanks
cybermaus said:
The GPS antenna is a bit higher, it is the small pink 'cube' thingy on top of the phone, connected by the micro coax connector.
I had reported before the micro coax is loose in some devices, and I suspect you 'accidentally' fitted it better while opening and closing the phone.
Click to expand...
Click to collapse
I also had this problem, the connector was loose, now I have very good signal. No aluminium foil needed. Your post saved me!
My recommendation to other people trying to solve this problem: be VERY careful when you open your phone.
So i bought 2 nexus 4's a couple of months ago (cracked digitizers) and replaced the front frame/assembly with some i bought on Ebay.
They work fine except for the GPS. Both the phones are not connecting to the satellites. I downloaded GPS Status and GPS status and tool kit (or something lie that), tried resetting A-GPS downloading GPD data and nothing works.
I use co-pilot offline GPS and the phone is set to devices only to only use the GPS and not data. Co-pilot never connects with gps.
And both GPs status apps are stuck in "looking for GPS location" eternally. With Fix/Sats always staying a 0/0. I use to get 0/26 or something along the lines, but after resetting A-GPS a couple of times it stays at 0/0.
Since both phones present the same symptoms I started suspecting the front frame/assembly and found this : http://forum.xda-developers.com/nexus-4/general/nexus-4-gps-fixing-screen-replacement-t2895111
I wrapped the digitizer IC in foil like the guy did and it changed nothing. so i want to try and find some copper tape and layer up the contact points on the back cover in case the antennas don't make good contact. Do you think this might be the problem?
Also i flashed CM 10 on one of the phone in case it was an android problem, but i get the same results in CM.
Any ideas? this is the only thing that is not working on the phones and I would really like to get them working.
Thanks!
fullpampers said:
So i bought 2 nexus 4's a couple of months ago (cracked digitizers) and replaced the front frame/assembly with some i bought on Ebay.
They work fine except for the GPS. Both the phones are not connecting to the satellites. I downloaded GPS Status and GPS status and tool kit (or something lie that), tried resetting A-GPS downloading GPD data and nothing works.
I use co-pilot offline GPS and the phone is set to devices only to only use the GPS and not data. Co-pilot never connects with gps.
And both GPs status apps are stuck in "looking for GPS location" eternally. With Fix/Sats always staying a 0/0. I use to get 0/26 or something along the lines, but after resetting A-GPS a couple of times it stays at 0/0.
Since both phones present the same symptoms I started suspecting the front frame/assembly and found this : http://forum.xda-developers.com/nexus-4/general/nexus-4-gps-fixing-screen-replacement-t2895111
I wrapped the digitizer IC in foil like the guy did and it changed nothing. so i want to try and find some copper tape and layer up the contact points on the back cover in case the antennas don't make good contact. Do you think this might be the problem?
Also i flashed CM 10 on one of the phone in case it was an android problem, but i get the same results in CM.
Any ideas? this is the only thing that is not working on the phones and I would really like to get them working.
Thanks!
Click to expand...
Click to collapse
I have same problem, it gets same number of saletites like my nexus 7 2013 but with low signal and fix makes long time.
slydew said:
I have same problem, it gets same number of saletites like my nexus 7 2013 but with low signal and fix makes long time.
Click to expand...
Click to collapse
It seems it is a grounding problem between the frame, the board and the back cover. Mine is still not working but i had a little success with switching the conductive pads from my old frame assembly. But after a while something must have moved because I am not getting any gps lock anymore. I am waiting on some conductive tape to fix this.
http://forum.xda-developers.com/nexus-4/general/nexus-4-gps-fixing-screen-replacement-t2895111/page4
Look in this forum if this seems to be your problem.
Hi
I broken my Nexus4 screen (again), so I ordered a new one (it the frame) on ebay. Once received, I replace my broken and start using my phone again.
I was very surprise to see that the GPS could hardly fix, and when it does, it is more thant 100ft accuracy, really not enough for daily use.
The digitizer seems well isolated, but I see that the frame doesn't have the blue tape which must be placed where you put the main board ...
Can it be the cause of my GPS problem ?
Hi all,
during these months I have had a lot of problems with GPS Fix with my Z3C. These problems occurred after the update to 6.0.1 and I thought that It was a software issue.
In my case, GPS works well after upgrade but It degraded little by little. Applications like GPS Status reported a very very low satellite signal.
Reading every possible forum, I found some guys that explain how to "solve" the problem plugging the usb and powering the phone. An other post specified that the solution was not the "powering" and the fix become better if you lightly pulling the usb connector to you... and It was true! So the problem was not software.
So I opened the phone, disassembled the mainboard from the chassis and tryed to understand what part was involved in the "usb pulling solution".
I found that many connectors (like a little pin) were connected to some particular parts to the chassis (as if it were used as antenna).
In this photo you can see where the mainboard connectors impact on the chassis.
(Sorry the forum prevent me to post link or image)
And this is the specific connector involved in "usb pulling solution"
(Sorry the forum prevent me to post link or image)
It seem that this connector was linked in the edge of connection area, not in the middle as the other connector.
So I gently bent the connector upward and reassembled the phone.
After that, the GPS Status reported a signal very high. Never seen a signal so hight before!
The fix was very fast and the accuracy was constantly under 3mt
I'm not an expert, I'm only a normal user. I hope that this thread can help some other like me that need GPS works very well for run, drive and play.
Thank you for this post - I've been fighting with my GPS for months and am about ready to open up the phone too. Any chance you could post the images externally somehow? It would make this a lot easier to follow for me.
Wulfhere said:
Thank you for this post - I've been fighting with my GPS for months and am about ready to open up the phone too. Any chance you could post the images externally somehow? It would make this a lot easier to follow for me.
Click to expand...
Click to collapse
I'm trying to post images but the forum reply me in this way:
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
I'm asking to the moderatos if is possible to unlock me.
I will let you know
Anyway... start watching "sony z3 compact disassembly" on youtube. You need some tool to do this without destroy the phone. But trust me, is not so difficult. In particular, take care about the battery door opening.
gepp81 said:
I'm trying to post images but the forum reply me in this way:
"To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!"
I'm asking to the moderatos if is possible to unlock me.
I will let you know
Anyway... start watching "sony z3 compact disassembly" on youtube. You need some tool to do this without destroy the phone. But trust me, is not so difficult. In particular, take care about the battery door opening.
Click to expand...
Click to collapse
Just add a few 'well done Mr Developer' messages to a few threads, you'll soon get to ten
great news waiting for photos, maybe link to photopucket or something ?
Nice you've fixed it yourself!
gepp81 said:
It seem that this connector was linked in the edge of connection area, not in the middle as the other connector.
So I gently bent the connector upward and reassembled the phone.
Click to expand...
Click to collapse
I've already disassembled a plenty of Sony phones (from Xperia X10 pretty much to every single later Sony phone that was available in Poland) and the issue with bent connectors is very very common. I also had this problem in my Xperia PLAY where my WiFi and cellular network connectors were bent and were linked on the edges of the plates.
ALL Connectors
https://www.dropbox.com/s/pgldca344e3h7be/WhatsApp-Image-20160710.jpeg?dl=0
GPS Connector
https://www.dropbox.com/s/egh4vjmpt96qdzp/WhatsApp-Image-20160710%20%281%29.jpeg?dl=0
romcio47 said:
Nice you've fixed it yourself!
I've already disassembled a plenty of Sony phones (from Xperia X10 pretty much to every single later Sony phone that was available in Poland) and the issue with bent connectors is very very common. I also had this problem in my Xperia PLAY where my WiFi and cellular network connectors were bent and were linked on the edges of the plates.
Click to expand...
Click to collapse
Do you have a connectors map?
Hell. I had the same problem : suddenly the GPS signal became very weak, almost unable to catch any satellites and degrading over time, so since I still had 1 month warranty I sent it to the repair center and they changed my PBA (which is the motherboard, I believe.) It is now working like a champ again. If I were to get the problem back in a few month, after my warranty expiration, I'll definitively try to do what you did.
Thanks for the info.
gepp81 said:
Do you have a connectors map?
Click to expand...
Click to collapse
Unfortunately, no... but I recommend visiting iFixit site where some of the phones are nicely described.
Thanks a milion gepp81!
I ve ordered some replacement parts and tools and I will try to resurrect my z3 gps.
Yarymo said:
Hell. I had the same problem : suddenly the GPS signal became very weak, almost unable to catch any satellites and degrading over time, so since I still had 1 month warranty I sent it to the repair center and they changed my PBA (which is the motherboard, I believe.) It is now working like a champ again. If I were to get the problem back in a few month, after my warranty expiration, I'll definitively try to do what you did.
Thanks for the info.
Click to expand...
Click to collapse
Same with me.
I believe that since we got a new imei number e got new warranty. I have to check the law.
Enviado do meu D5803 através de Tapatalk
Can anyone confirm this please? It looks weird to me. According to service manual all antenna connectors are on secondary side of mainboard (accesibble without removing battery, just after opening rear cover and removing that frame around, which has 4 screws, if I remember correctly).
It works
IkE Blaster said:
Can anyone confirm this please? It looks weird to me. According to service manual all antenna connectors are on secondary side of mainboard (accesibble without removing battery, just after opening rear cover and removing that frame around, which has 4 screws, if I remember correctly).
Click to expand...
Click to collapse
It works. All the connectors are on one side of the motherboard (not the battery side). The picture gepp81 posted shows the antenna area where the connectors connect to, so not the actual gps connector.
Thanks a lot!
I had absolutely no GPS signal.
After trying every software tweak / wipe / rom.... (I was hopping it was a software issue) I finally tried your solution, straighten all the little contacts, and now my GPS has a wonderful signal!!!
I destroyed my back cover, but it doesn't matter I prefer that than no GPS
Wow, thank you. I can also confirm this. Despite that official service manual says something different.
Previously zero signal at all (23 satellites with 0 SNR), sometime 1 very weak satellite. Now 9 fixed, another 6 visible. Those 15 doesn't have very strong signal, but it's usable.
I am thinking about using some thin wire to improve it (like this: https://talk.sonymobile.com/t5/Xperia-Z3-Compact/GPS-issue/m-p/1006245/highlight/true#M12642 ).
Another successful story here - gps stopped working, i updated my rooted kitkat to slimm 2.4, opened phone, did the connectors trick, but gps was still dead. Then after few days i checked "Device only" in Location settings and GPS came back to life! Now works with "High accuracy" mode as well
lakicamm said:
Another successful story here - gps stopped working, i updated my rooted kitkat to slimm 2.4, opened phone, did the connectors trick, but gps was still dead. Then after few days i checked "Device only" in Location settings and GPS came back to life! Now works with "High accuracy" mode as well
Click to expand...
Click to collapse
Also had problems with my gps. First I thought it was water damage. But pulling with the usb connector made it work again.
Did the trick with bending the connector. Now I have signal but is is not very strong.
Is there a way to make the signal stronger?
Is the copper strip the antenna?
Can I replace this with another copper strip that works as a better antenna?
Or .....?
If your gps antenna is somehow damaged, you could fix it using silver paint:
http://www.2spi.com/category/silver-paints-pastes/
I didnt try it, but friend of mine uses it to fix broken boards on laptops... Should work in phones too
Same problem. I sent my phone to service. They changed motherboard. Now GPS Works perfect. And my warranty is extended for 2 years, because of different motherboard and IME. Thanks Sony, very good service