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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!
I have problems with my signal at work, it's at the minimum in 1X. I can barely make/receive calls, and they cut out often. While at work I came across this video metacafe.com 963126 boost your cellular signal
It claims that by doing this simple project you can increase your signal. So I decided to try it. Sure enough, it works!
The problem now is that once I took the cable out for comparison of with Vs. without, i have no signal!
So, before I would have ~ 1-2 bars at home, enough to be in EV and get on the net without any problem. Now, I can't get on at all, and I can only get a line on roaming, which was completely disabled before. Also my extended battery which would only be at 50% after fri,sat and sunday's use is now at 27% sunday morning! (last charged friday afternoon).
So now I have modified it so i can keep this antenna inside under the battery cover and i'm getting 2 bars again, sometimes full bars (at home). I would still like to put it as it was before.
But my main question is, WHY did this happen? It's not like something got jammed up in the antenna plug. So, what are your thoughts?)
This thread, over at pdaphonehome, includes several posts warning that the connection to the external antenna connector is somewhat fragile, and if it is damaged it disconnects the internal antenna also.
http://pdaphonehome.com/forums/ppc-6800-xv6800/91095-antenna-port-what-can-used.html
Thanks for the info. I think you're dead on, the connection was damaged. I tried playing with it for a bit, but I just can't do anything. What i've done since then is left the external antenna I made inside the case. It works i'd say as good as before, and sometimes better. Oh well, what a bummer.
At least everyone else can know for sure now!
bakntyme said:
This thread, over at pdaphonehome, includes several posts warning that the connection to the external antenna connector is somewhat fragile, and if it is damaged it disconnects the internal antenna also.
http://pdaphonehome.com/forums/ppc-6800-xv6800/91095-antenna-port-what-can-used.html
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Hi guys, hoping someone can give me some help with my phone problems.
I have a verizon s4 that was working perfect other than having a cracked lcd. I took apart my phone and unplugged all the flex cables and antenna and removed all the modular pieces on the phone then replaced the lcd/digitizer assembly (didn't use heat). When I finished my repair and put everything back together, the phone appeared to work fine at first, but I soon realised my wifi performance was really bad (1 bar 5 feet from router) and also my 4g was being weird (if it goes under 2 bars, it stops working and eventually after a few minutes shifts to 3g where it does work fine) I took the phone back apart to see if I missed anything, but the antenna are both plugged in properly and all the flex are plugged in.
Does anybody have any ideas?
8
I think I have figured out my problem, but I am not sure how to fix it. Hoping someone can help. I had an antenna contact bent over. When I went to bend it it broke the top portion off.
Any idea on how to fix or replace it? Also where to get a replacement part if needed.
Two days ago my battery was extremely drained, i followed a video tutorial on YouTube to fix it by removing the battery and put it back, but after doing this my wifi became so bad! for example, if there's 10 networks nearby i only could see 4 of them with its half strength.
any help please?
Check wireless antene (white one i guess). Those cables are very weak be careful.
khanjui said:
Check wireless antene (white one i guess). Those cables are very weak be careful.
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Can you explain more about it or where i can find it?
Yes please do, i had a look at mine but its still weak and all my other things connect and are strong, just this bloody phone
carpon said:
Can you explain more about it or where i can find it?
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Click to collapse
https://www.ifixit.com/Teardown/LG+G2+Teardown/20485
I had same problem too. I chanced cables but didn't work. So I'm not sure is it works. I sent my phone to guarantee and they fix it, don't know how. Black cable is cellular antenna.
Sent from my LG-D802
i checked them out, both are well connected!
may the modem version or the baseband affect the connection?
carpon said:
i checked them out, both are well connected!
may the modem version or the baseband affect the connection?
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Click to collapse
I don't think so. Looks like hardware problem i guess. Compare with another phone on same location, check signal quality.
Perhaps when you removed the wires, you damaged the connector on the wire itself or the mother board.
Hopefully its the wire which would be a quick, easy and inexpensive fix.
To reach the battery you have to undo the rear plastic housing, unscrew the MB cover, unclip a few connectors remove the power/volume ribbon assembly and disconnect the antenna wires.
It may be worth taking the entire phone down to the MB and redoing the process one more time.
Take your time and make sure everything is connected one last time before you power the phone back up again.
There's a good chance something could have been overlooked.
20 minutes of your time could save you some heartache and pain
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.
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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).
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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