Related
Anyone had experienced this problem and managed to solve it is kindly asked to share info. The rest of the phone works great, I have installed touch flo 3D, IGO8... but it does not see the sim.
Old SIM card?
1octav said:
Anyone had experienced this problem and managed to solve it is kindly asked to share info. The rest of the phone works great, I have installed touch flo 3D, IGO8... but it does not see the sim.
Click to expand...
Click to collapse
I am having the same problem and I ordered a Sim Holder replacement from Ebay, maybe that will fix my problem...
What is a sim Holder replacement, niabi? Your problem was software or hardware problem?
I think my problem is hardware, still waiting on the sim holder to get here.
I got it from Ebay here
I had the same problem a week ago and I managed to solve it by dismantling the SIM unit and the data cable.
I figured out that one of the two little screws were not fully pressing the unit to its base... Don't know if this had anything to do.
I mounted the whole think again and it worked 100% fully...
I was about to ask for a replacement on eBay too..
Regards.
I have a similar problem. I bought a Polaris from Taiwan for my brother in law. But the phone does not work. Every other function works on the phone, it can access the contacts on the SIM but cannot connect to Turkcell network.
It just says "searching" or sometimes "access denied". We tried different sim cards but always the same thing. It can access the contacts on the SIM card but cannot access network. I tried different radio/main roms including the latest radio but no solution.
Can it be due to sim holder? Since it can see the contacts I doubted it..
my problem is still not resolved even with the new sim holder been trying several things, the only thing that I think could be wrong is if the cable is not doing good contact on the board, and for that I think I am screwed
but, is this something that happends a lot?
I dismantled my Polaris yesterday. Since I did it, it says "SIM card missing". I'm sure the SIM connector that plugs into the motherboard is well attached, but there's is not way for it to get the SIM card. I soft-reseted it lots of times because somebody told it could be the solution (after taking apart Polaris into pieces).
I don't know what to do. Looking into the forums somebody also said that some "EMI gasket" is vital for it to work, but I don't remember having removed it
Please, help me.
Thanks.
I have exactly the same problem...
Sim card missing after dismantling..
I already ordered sim card board and replaced, without success.
Unfortunatelly i should say goodbye to my Polaris, since it seems that the connector socket placed on motherboard is destroyed after an accidentally pulling of the sim board cable..
Time to get a new device anyway. Hopefully a HTC
Sent from my HTC Polaris using XDA App
I have the same
I had the same problem. The little ribbon cable that connects the SIM board to the motherboard was damaged during the dismantling process. I ordered a replacement SIM board from a chinese web site for as little as $6.50 (free shipping). It took a while to arrive but it did solve my problem!
fldin said:
I had the same problem. The little ribbon cable that connects the SIM board to the motherboard was damaged during the dismantling process. I ordered a replacement SIM board from a chinese web site for as little as $6.50 (free shipping). It took a while to arrive but it did solve my problem!
Click to expand...
Click to collapse
Can you give the name of that chinese site?
KaaRaT said:
Can you give the name of that chinese site?
Click to expand...
Click to collapse
why do not you try looking at http://shop.ebay.com/i.html?_kw=replacement&_kw=SIM Free shipping
KaaRaT said:
Can you give the name of that chinese site?
Click to expand...
Click to collapse
I actually bought it on ebay: http://cgi.ebay.com/Sim-Card-Holder...096941?pt=PDA_Accessories&hash=item3f0504236d
They sent me 2 pieces for the cost of 1. The reason is that the first one got delayed so they sent me a second one assuming the first was lost in the mail. They gladly told me I can keep the second one for free.
The chinese site is DealExtreme. What I bought from DealExtreme was a repalcement touch screen digitizer for only $7.01:
http://www.dealextreme.com/p/htc-p3650-p860-cruise-replacement-touch-screen-digitizer-module-32150
Thanks guys
Hello,
I´ve got the same problem, but I have never dismantled my device. Is it possible that this is a software defect ? The error happens sometimes but not always. Sometimes I have no signal (and the simcard can not be read)...I have this problem since I have changed my simcard, because the old one was about 10 years old and it had not support for 3G. After changing the simcard the problems began...At this moment it is the 4th simcard, because the others were destroyed by the phone (it was impossible to read any data from them e.g. in other phones/pc).
So do you think that this is a software or a hardwaredefect ?
Thanks in advice.
Like the title says, I replaced the digitizer, but now my phone either isn't recognizing my SIM card, or somehow the antenna isn't working. I can connect to my home wifi network, I have full audio, full capacitive buttons and vibration....but signal bar just shows empty (i'm using CM10).
I've put my SIM into my other phone, everything works fine. I've checked all of the connectors on the motherboard, everything is connected and nothing is loose or pinched anywhere. Can someone give me a layout of which connections control what?
thanks.
Remember that there's actually two different antennas. My suggestion would be to recheck each connection and make sure there's a solid click when you connect it
Sent from my LG-P999 using xda premium
rtotheichie said:
Remember that there's actually two different antennas. My suggestion would be to recheck each connection and make sure there's a solid click when you connect it
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
the top connector came off the wire when I snapped it from the motherboard. I crimped the wire back in place but maybe I sould solder.
Crimp should work if the center pin is still making contact with the wire. Soldering shouldn't hurt anything that I can think of
Sent from my LG-P999 using xda app-developers app
guitarist5122 said:
Crimp should work if the center pin is still making contact with the wire. Soldering shouldn't hurt anything that I can think of
Sent from my LG-P999 using xda app-developers app
Click to expand...
Click to collapse
Update, I've purchased a replacement micro-coax cable, that fits correctly, but still have no signal coming to my phone for whatever reason. Any ideas, maybe getting a crappy g2x for parts and using it's cable?
stevew84 said:
Update, I've purchased a replacement micro-coax cable, that fits correctly, but still have no signal coming to my phone for whatever reason. Any ideas, maybe getting a crappy g2x for parts and using it's cable?
Click to expand...
Click to collapse
Where did you get the cable from?
Did you test the continuity of the cable's wire?
Core Memory said:
Where did you get the cable from?
Did you test the continuity of the cable's wire?
Click to expand...
Click to collapse
This is what I ordered:
http://www.digikey.com/product-search/en?x=12&y=15&lang=en&site=us&KeyWords=A36224-ND
stevew84 said:
This is what I ordered:
http://www.digikey.com/product-search/en?x=12&y=15&lang=en&site=us&KeyWords=A36224-ND
Click to expand...
Click to collapse
That should work. Are all the other internal connectors fully seated?
Core Memory said:
That should work. Are all the other internal connectors fully seated?
Click to expand...
Click to collapse
Yup, not too sure what's happening. I literally did NOTHING else to the phone except accidentally rip off the connection on the lower end of the phone. I still get Wifi, so I know nothing internally is broken. I need to call tmo on the off chance this phone got locked due to previous owner payment or reported lost or stolen. It was an LG branded, g2x, though, which doesn't get sold throught tmo.
stevew84 said:
Yup, not too sure what's happening. I literally did NOTHING else to the phone except accidentally rip off the connection on the lower end of the phone. I still get Wifi, so I know nothing internally is broken. I need to call tmo on the off chance this phone got locked due to previous owner payment or reported lost or stolen. It was an LG branded, g2x, though, which doesn't get sold throught tmo.
Click to expand...
Click to collapse
The LG brand could mean that the digitizer was previously replaced. It sounds like a very peculiar situation you are in. Replacement parts idea is probably best if you have looked over everything very carefully and can't visually find anything wrong. Did you use a hair dryer or other heat source to get the digitizer off? Perhaps the radio portion received to much heat and fried. That the only thing I can think of.
guitarist5122 said:
The LG brand could mean that the digitizer was previously replaced. It sounds like a very peculiar situation you are in. Replacement parts idea is probably best if you have looked over everything very carefully and can't visually find anything wrong. Did you use a hair dryer or other heat source to get the digitizer off? Perhaps the radio portion received to much heat and fried. That the only thing I can think of.
Click to expand...
Click to collapse
When I first did the repair, I ripped the ribbon from mother board to digitizer, not realizing it was there in the first place. The screen separated from the digitizer pretty easily, no heat required.
The new piece I ordered had the digitizer and outside bezel all attached as one piece, which would normally be two pieces. While constructing everything, I forgot that little rubber/plastic piece that fits near the front facing camera, so I detached the mother board connections, then went down to the antenna area and disconnected the micro coax and the connector slipped off the cable altogether. I put the exposed wire back into the connector, restarted the phone, and there has been no signal ever sense.
The last thing I'm going to try is getting an OEM micro coax from either a P990 or P999. I feel kind of stupid for worrying about this, since it's an old phone with limited development at the moment, plus I have another phone already. But since I bought an entirely new shell, I want to fix this damn thing and probably just sell it.
stevew84 said:
Yup, not too sure what's happening. I literally did NOTHING else to the phone except accidentally rip off the connection on the lower end of the phone. I still get Wifi, so I know nothing internally is broken. I need to call tmo on the off chance this phone got locked due to previous owner payment or reported lost or stolen. It was an LG branded, g2x, though, which doesn't get sold throught tmo.
Click to expand...
Click to collapse
Canadian G2X/P999 are branded LG and are known as Optimus 2X even though they are not the P990 Optimus 2X which is/was also sold in Canada, each model sold by different service providers operating on different cell radio bands. At a point, T-Mobile was supplying LG branded G2X/P999 phones as replacements. You probably have one of those or, if you bought it from someone in Canada or who was in Canada that would also explain why yours is branded LG.
If you shorted the antenna cable's internal wire to its shield that would short-circuit the cell radio's output which may have damaged the hardware if the phone transmitted while there was a short-circuit.
Core Memory said:
Canadian G2X/P999 are branded LG and are known as Optimus 2X even though they are not the P990 Optimus 2X which is/was also sold in Canada, each model sold by different service providers operating on different cell radio bands. At a point, T-Mobile was supplying LG branded G2X/P999 phones as replacements. You probably have one of those or, if you bought it from someone in Canada or who was in Canada that would also explain why yours is branded LG.
If you shorted the antenna cable's internal wire to its shield that would short-circuit the cell radio's output which may have damaged the hardware if the phone transmitted while there was a short-circuit.
Click to expand...
Click to collapse
I think what I need to do, if i wanted to keep this phone, is the buy a crappy g2x and use it's internal motherboard with antenna and coax cable.
Does anyone know what the board is called at the bottom of the phone, near the charging port? It's where one end of the micro coax cable connects. The other end is near the middle of the phone, on the main mother board.
I'm wondering since the board at the bottom had the problem, if I were to replace that.
Here's the repair manual:
http://www.scribd.com/doc/84937521/70/EXPLODED-VIEW
There is a way to test the cell phone radio to determine if it works but it involves installing some Qualcomm software, QPST and QXDM, which are professional tools for monitoring, testing and modifying the phone's Qualcomm cell radio characteristics. My post about how to fix the P999 IMEI has the download links and instructions for setting QPST up: http://forum.xda-developers.com/showthread.php?t=1942417 I'll find the QXDM link and installation instructions and post it in this thread too.
Here's QXDM 03.11.36 http://www.mediafire.com/?tmzmngemgmm
Install them both as Administrator.
Core Memory said:
There is a way to test the cell phone radio to determine if it works but it involves installing some Qualcomm software, QPST and QXDM, which are professional tools for monitoring, testing and modifying the phone's Qualcomm cell radio characteristics. My post about how to fix the P999 IMEI has the download links and instructions for setting QPST up: http://forum.xda-developers.com/showthread.php?t=1942417 I'll find the QXDM link and installation instructions and post it in this thread too.
Here's QXDM 03.11.36 http://www.mediafire.com/?tmzmngemgmm
Install them both as Administrator.
Click to expand...
Click to collapse
Awesome, I'll give it a shot when I get home, see what happens.
stevew84 said:
Awesome, I'll give it a shot when I get home, see what happens.
Click to expand...
Click to collapse
I've written up a procedure to determine if a phone's cell radio is working.
http://forum.xda-developers.com/showpost.php?p=33779273&postcount=1
Finally fixed the damn thing, adjusted the length on either side of the mico coax, the cable isn't being pinched anymore so it works fine. I have a slight problem, though, I have some bright light bleeding from the middle left, and top right of the screen. Maybe because the LED isn't seated flush against the digitizer? Is that what would cause this?
It's minimal, and I don't want to take it apart, but still curious.
Around the screen edge there should be attached to the digitizer a thin foam gasket. If it is missing a piece of the thin foam or if it somehow got disturbed or is not there it most likely is where the bleed is comming from.
Eddie
Sent from my AT100 using xda premium
Hey everyone,
recently my SC-02h (Jap Docomo version) hard-bricked and has no way to recover besides JTAG or motherboard replacement.
This made me think of an experiment.
Can you replace any motherboard (which includes all chips and the storage) with another.
I ordered the g935FD dual sim version with the Exynos chip, this compared to my QC single sim version which is currently bricked.
Hopefully within the next few days I'll receive the motherboard and start the replacement process (I will probable film it) to see if it works.
If so, anyone could replace their motherboard by a new one that is unlocked or has a different chipset.
Please discuss here if you're also interested in changing your own mobo with another.
Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.
Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.
Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk
lyriquidperfection said:
Can't see why it won't work as the motherboard is what determines the model. Just make sure you order up a dual SIM tray too.
Click to expand...
Click to collapse
Yea I ordered that one, although I thought the tray looks the same (bottom part), so until my new one arrives I'll use the older one.
the_scotsman said:
Motherboards from different chipsets *may* have different connections on how things wire up. I'm not saying they do, I'm just thinking out loud. I'd only buy a replacement motherboard from the same variant.
And good luck finding a new motherboard. At the price they sell for, you'd be better off buying a whole new phone.
Click to expand...
Click to collapse
I checked the connections and they are the same, the only thing that differs is the sim holder and the chipset.
Also a new phone (unlocked) costs at least 2,5times more (live in Japan).
dogredwing1 said:
Would like to see how this goes. Please record the process.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
I'll record it on video as soon as it arrives, also the process of taking it out and replacing it completely. So if it ends up in failure you can all see it.
In what way is it bricked? The S7 is almost impossible to brick.
CuBz90 said:
In what way is it bricked? The S7 is almost impossible to brick.
Click to expand...
Click to collapse
Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
Also no recognition in windows when connected to USB
totalvamp said:
Hmm I flashed a rom with TWRP, (lineage, but wrong build) after that I rebooted and the phone stopped responding completely.
So black screen, no led when charging, no response at all when pressing buttons.
Even disconnecting battery and reconnecting didn't work.
Click to expand...
Click to collapse
Can't get to download mode?
CuBz90 said:
Can't get to download mode?
Click to expand...
Click to collapse
Well if I could I wouldn't be ordering a new MoBo
Even made a USB JIG
Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..
thedisturbedone said:
Another thing you might lose is waterproofness. I cracked my screen badly and instead of repairing it at a 3rd party shop, I sold it and got a new one. Coz it won't be waterproof anymore..
Click to expand...
Click to collapse
i should be fine, just get it glued back together properly.
besides i don't really care about it.
Unless the other components (camera, vibrator motor, various sensors, OLED Panel etc.) don't differ in the way they talk to the mainboard, I don't see why it shouldn't work. As others have said, I'd really love to see how it'll work out for you. So, thanks for sharing =)
Well it didn't work out, I put in the new motherboard but the phone didn't power on at all. There is also no led when trying to charge it. I'll be sending it back to the supplier and buy another version instead.
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
Click to expand...
Click to collapse
Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.
totalvamp said:
https://www.youtube.com/watch?v=jym2aNwRmkc
Made a video of the process and failure
Click to expand...
Click to collapse
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.
murtaza02 said:
Was interesting to watch, however you only tried powering on twice and quit?
Connecting a charger had no effect?
Unless the board your received was dead to begin with.
Click to expand...
Click to collapse
Well I tried a few times after that and after letting it on a charger, still no response.
nitrous² said:
Can you share the link of where you bought the motherboard? It might be that you bought a blank motherboard. In that case you want it to be flashed with the correct IMEI and partition (table?). AFAIK the IMEI has to be that of your previous phone since you can't just "create" a new IMEI. Don't even want to get into the legal repercussions but here's a sneak peak; in some countries it's a criminal offence to alter an IMEI or even have tools to alter IMEI. Don't quote me on this and I'm asking the community to correct me. If the motherboard comes from a previously active device, it should have its own IMEI and none of what I said before matters.
Whatever, none of that necessarily explain why it didn't boot up. Have you tried charging and plugging it to a PC? If it isn't dead, your PC should at least detect A device.
Click to expand...
Click to collapse
http://www.ebay.com/itm/MAIN-MOTHER.../182310990269?ssPageName=ADME:X:RRNTB:NL:3160
It should be one with an IMEI how else can it be unlocked.
I tried plugging it in as well, but my PC doesn't recognise it at all.
I've ordered a different one this time, this motherboard was also slightly different from the one I had (2 cables instead of 3) so it might be incompatible.
I ordered this one now: https://www.aliexpress.com/snapshot/0.html?orderId=82116420384467&productId=32737224430
Did you end up having any luck with the second motherboard?
Or has anyone else attempted this before?
I'm looking to swap my qc chip for the exynos.
How was the operation??
Hello i'm interested to know how was the experiment becouse i wanna try almost the same thing, i have a s7 sm935fd and i wanna change the motherboard for a sm935f model. Please answer me!
I am also going to try swapping motherboards. How did yours work out?
Hi @totalvamp,
I am going to try swapping out a good motherboard from a banged up sprint G930P phone with a clean IMEI into a clean, whole, G930X demo model that I picked up cheap on Ebay.
The "X" demo phones work on WIFI only. I understand that the "X" motherboards are missing the cellular radios, which is why I am trying this swap -- it should be far easier and less costly than doing a full screen&LCD replacement, which requires tearing down the entire phone, and costs about $150. Hopefullly, I will just have to remove the back, the QI receiver and I think the camera, and I'll get access to the motherboard.
My hope is that all the rest of the parts are present -- we'll see how it goes.
I look forward to hearing from you.
Philip
Hello everyone.
my device is actually a G play mini but we all know it's just a rebranded honor 4c ( in my case CHC U23)
my problem is wifi/bluetooth don't "see" any networks. However, mobile 3g works fine
Don't know when problem started because the phone was handed down to me.
I've done a lot of research and I will post my findings.
- This seems to be a common problem with Honor 4C/GPlaymini/P8lite. I've tried any all all stock and custom roms from all the models above and problem persists so I'm possitive it's hardware related.
- From searching youtube the solution seems to be to replace or "reball" the wifi IC. my first finding is that the part number is:
HI1101 ( I had to apply hot air to a metal shield in order to remove it and see that) it's under the shield 'between' the Kirin620 and the headphone jack. This is the same IC chip as p8 lite
- a motherboard replacement costs about the same as a new phone so not worth it IMO however the wifi chip is easily findable and reasonably cheap on ebay or alixpress and I would give it a try. (I'm a beginner but wanting to learn)
My question if anyone has any experience is:
1) In youtube videos the wifi/bluetooth switch was greyed out and then the fix was to replace IC. Since I could use the switch but phone just didn't "see" any networks (even next to the router) does that mean the problem lies elsewhere and I'm just risking to brick the phone?
2) assuming wifi IC is fine, my other idea is the RF cable/ribbon/connection is damaged (which makes sense) but I can't for the life of me find where such internal cable is either by myself or in dissasemble videos (of which there are very few for our 4C) But interestingly on ali and ebay such a part exists (won't post links but honor 4c wifi connector is easy to find)
Does anyone know where such a connection is located or if it's just a mistake from the sellers? Are there boards that don't have those white rf cables to connect internal external antennas? Where is even RF antenna on the 4C?
I will update this if I attempt repairs but it will take a long time for any parts to reach my country.
Any other input on the wifi/bluetooth issues is appreciated. Also perhaps share your story if you have a similar problem. Specially if you solved it.
Sorry if I'm not posting in the right place, but this is as close as I could get for my not-so-popular model.
alderus said:
Hello everyone.
my device is actually a G play mini but we all know it's just a rebranded honor 4c ( in my case CHC U23)
my problem is wifi/bluetooth don't "see" any networks. However, mobile 3g works fine
.
Click to expand...
Click to collapse
Hei Alderus,
Did you manage to solve the problem?
I have the same issue with the WIFI/BT (they're grey).
Please let me know if you have any updates.
Thanks!
fixed your issue?
alderus said:
Hello everyone.
my device is actually a G play mini but we all know it's just a rebranded honor 4c ( in my case CHC U23)
my problem is wifi/bluetooth don't "see" any networks. However, mobile 3g works fine
Don't know when problem started because the phone was handed down to me.
I've done a lot of research and I will post my findings.
- This seems to be a common problem with Honor 4C/GPlaymini/P8lite. I've tried any all all stock and custom roms from all the models above and problem persists so I'm possitive it's hardware related.
- From searching youtube the solution seems to be to replace or "reball" the wifi IC. my first finding is that the part number is:
HI1101 ( I had to apply hot air to a metal shield in order to remove it and see that) it's under the shield 'between' the Kirin620 and the headphone jack. This is the same IC chip as p8 lite
- a motherboard replacement costs about the same as a new phone so not worth it IMO however the wifi chip is easily findable and reasonably cheap on ebay or alixpress and I would give it a try. (I'm a beginner but wanting to learn)
My question if anyone has any experience is:
1) In youtube videos the wifi/bluetooth switch was greyed out and then the fix was to replace IC. Since I could use the switch but phone just didn't "see" any networks (even next to the router) does that mean the problem lies elsewhere and I'm just risking to brick the phone?
2) assuming wifi IC is fine, my other idea is the RF cable/ribbon/connection is damaged (which makes sense) but I can't for the life of me find where such internal cable is either by myself or in dissasemble videos (of which there are very few for our 4C) But interestingly on ali and ebay such a part exists (won't post links but honor 4c wifi connector is easy to find)
Does anyone know where such a connection is located or if it's just a mistake from the sellers? Are there boards that don't have those white rf cables to connect internal external antennas? Where is even RF antenna on the 4C?
I will update this if I attempt repairs but it will take a long time for any parts to reach my country.
Any other input on the wifi/bluetooth issues is appreciated. Also perhaps share your story if you have a similar problem. Specially if you solved it.
Sorry if I'm not posting in the right place, but this is as close as I could get for my not-so-popular model.
Click to expand...
Click to collapse
woops. I should have posted long time ago. Anyways the update is I solved my problem (or it got solved by itself)
I had a business trip during summer, I still didn't had the replacement modem. Anyway, I remember it was blazingly hot and kept the phone in my pocket and then... I was very surprised to see wifi was detecting networks when back in the hotel!
I was running Lineage android 6.0. Didn't do any hardware or software changes, just went to a different city by plane it was hot and it started to work! there's is the funny catch that it never seems to work on the wifi I originally used it in back in my city(I moved from there but went back and found that I could see the network but it never really connected)
Other than that wifi has been working normally in any other home/office I've been to. I have no idea what really happened, but definitely I will never buy another huawei phone.
sorry if this doesn't help anyone in the same boat...