I just bought Starb92m and now i understand that it has poor signal reception for both simcard.Im connecting identical operators simcarts,also i put same operators simdcard to the samsung ace. Both simcard rx levels are 20dB lower than galaxy ace , i also check with SE c702...
How can i fix it? If this is common problem for both simcard and both radio technologies( gsm+utran), maybe i have problem with antenna?
I cannot send back phone because of high shipping cost .Could you help me about which one is gsm antenna in this picture? Does Gps and gsm antennas connect to the same antenna?
images3 .photomania .com /3577088 /1/ rad2E994 .jpg
mcbcan said:
I just bought Starb92m and now i understand that it has poor signal reception for both simcard.Im connecting identical operators simcarts,also i put same operators simdcard to the samsung ace. Both simcard rx levels are 20dB lower than galaxy ace , i also check with SE c702...
How can i fix it? If this is common problem for both simcard and both radio technologies( gsm+utran), maybe i have problem with antenna?
I cannot send back phone because of high shipping cost .Could you help me about which one is gsm antenna in this picture? Does Gps and gsm antennas connect to the same antenna?
images3 .photomania .com /3577088 /1/ rad2E994 .jpg
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Click to collapse
i dcide to open phone but which one is gsm antenna? how can i sure about antenna? i saw a little sma connector cable going to the bottom of the phone.may be that one is gsm antenna ?
mcbcan said:
i dcide to open phone but which one is gsm antenna? how can i sure about antenna? i saw a little sma connector cable going to the bottom of the phone.may be that one is gsm antenna ?
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Click to collapse
where can I find schematic of this phone from?
Related
Hey,
So I have some problems with service range, after I checked my SIM with other cellphones and checked my cellphone with other Sim-Cards I found that I have some problem with my antenna, the question is what should I replace?
the Antenna or the antenna connector cable?
What leads you to that conclusion? Merely checking your sim card in other phones and other sim cards in your phone has no/little connection with your antenna or antenna cable! There are easily a dozen or more hardware problems that could cause service range problems, not to speak of software problems! One of the first things I would check is what modem you have. Different modems act differently depending on your location. As a last resort, instead of mucking with your hardware, contact T-mobile customer service. You may be able to send it in for repair/replacement.
Hey, I bought the cellphone in the states but I'm using it in Europe so I cannot send it to T-mobile...
Anyway - I tried to switch modem version, back to stock, change roms but all are the same "****y" range..
I'm pretty sure that this is an hardware problem (while I'm holding the phone in the bottom the range is gettin really low...) the question is what I should replace
any suggests?
I have T-Mobile and I want to buy the International Samsung Galaxy S II. I understand that the International version does not support T-Mobile's 3g frequency band, and I would be limited to 2g speeds. However, I was wondering if it would be possible to buy an external antenna to be able to use 3g speeds. Or even better, is it possible to replace the internal antenna?
No and No.
DO NOT DO THIS UNLESS YOU WANT TO KILL YOUR GS2.
Sorry for the bold, but despite there being no rhyme or reason for it, I came across a thread which illustrated this fact from multiple people who tried external antennas, and here's what happened. The antenna worked, they thought all was good, then they disconnected the antenna, no signal. EVER again. I guess what happens is when you plug in an external antenna it pushes some contacts apart which breaks contact with the internal antenna permanently (supposedly a few that were very handy with a VERY tiny needle were able to fix it). Don't ask me why Samsung would design it this way while leaving the plugs exposed but that's what I read. Just wanted to make sure you didn't find out the hard way
In other words, the jack is there, and you can find adapters for those jack(s), but you really don't want to, unless you want to ONLY use external antennas for the rest of time (not most people).
EDIT: Whoops, forgot to add the most important part. Antenna has NOTHING to do with the fact that the radio doesn't support t-mo's frequencies. It's like having an antenna designed for HDTVs, and hoping to get hdtv on your standard def tv. Antennas don't "translate", they're all just fancy coathangers.
mwknowles92 said:
I have T-Mobile and I want to buy the International Samsung Galaxy S II. I understand that the International version does not support T-Mobile's 3g frequency band, and I would be limited to 2g speeds. However, I was wondering if it would be possible to buy an external antenna to be able to use 3g speeds. Or even better, is it possible to replace the internal antenna?
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Click to collapse
"antenna has nothing to do with GSM OR CDMA bands." its the radio chip that does the work.
Please use the Q&A Forum for questions Thanks
Moving to Q&A
Understood, thanks for your help guys. Is there a way to mark this as [Solved] or something?
mwknowles92 said:
Understood, thanks for your help guys. Is there a way to mark this as [Solved] or something?
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Click to collapse
Yes. Edit your first post to an eye-popping "SOLVED"
Hi...
I have a really big problem... I have Galaxy s2 korean. It dont work in pakistan. When i insert the sim. smtimes it receives some signals for 5 6 seconds and then phewww gone. I have done alot of googling but no luck ... I think it is network lock or somthing. It also shows carriers. But sim dont work on it actually what should i do.plz help me
And i was trying Samsungunloacker. But my efs folder is empty. plz help me. where and how to find nv_data.bin file
Do you have a korean SIM as well? I believe the range of your average GSM radio mast is about 4km. The distance between the Korean and Pakistani border is 4802km.
The solution to your problem is erect 1200 radio masts all through China, then register them all with your Korean provider and benefits from great signal.
postfatal said:
Do you have a korean SIM as well? I believe the range of your average GSM radio mast is about 4km. The distance between the Korean and Pakistani border is 4802km.
The solution to your problem is erect 1200 radio masts all through China, then register them all with your Korean provider and benefits from great signal.
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Click to collapse
I am not korean... I want this phone to work in Pakistan. But everything on phone works fine except picking up signals... I thought there is a hardware problem. but its not. its kind of network lock or somthing. beacause it always shows me access points i.e Warid Wap & Warid MMS. It also shows some mobile carrirers. Tell me what should i do
Search on here for efs rescue/restore.
Sent from my GT-I9100 using xda premium
Hi All,
I'm new here. Hoping someone can give me some advice/direction on my issue.
Just received two Elephone P3000S phones (one for me, one for gift). I'm in Canada on Koodo network, but don't get 4G because we are pretty rural (west of Ottawa), so we are using WCDMA/HSPA+ 850/1900 MHz.
The P3000S supports the following:
GSM:850/900/1800/1900, WCDMA:850/900/1900/2100(HSDPA), FDD-LTE:800/1800/2100/2600
At home, on our old phones (Samsung Galaxy SIIX), we would get cell signals of -93 dBm or better (not great, but usable). With the P3000S phones in the same location (both of them), the signal is -110 dBm or worse (not usable - not able to make calls or send texts). There are no protective cases on the phones to interfere with signal.
I've tried the the following:
- choosing 3G only and WCDMA only networks and editng APN settings specifically for Koodo
- changing/adding build.prop entries for ro.ril
- posting in Elephone forums - no help
- contacting Elephone - no response
The P3000S is new - just came available mid-December. Elephone has issued one update since then. It did not help my signal problem.
I know this could be a hardware/antenna issue, but since the phone is new, opening it up to tweak/boost the antenna is not really an option - a last resort if I can't sell the phones to someone who is located where they will work.
So, my next step (I think), is to try flashing a new modem, but I have no idea where to start with that to find one that might be compatible with Koodo and the P3000S. I'm willing to try several, but it's very new to me.
Relevant info:
Octacore MTK6592 + MTK6290
Android version: 4.4.2
Baseband: MOLY.LR9.W1423.MD.LWTG.MP.V3.P3
I'd really appreciate any advice.
Thanks in advance.
Anyone have any ideas where I might start?
heath3000 said:
Hi All,
I'm new here. Hoping someone can give me some advice/direction on my issue.
Just received two Elephone P3000S phones (one for me, one for gift). I'm in Canada on Koodo network, but don't get 4G because we are pretty rural (west of Ottawa), so we are using WCDMA/HSPA+ 850/1900 MHz.
The P3000S supports the following:
GSM:850/900/1800/1900, WCDMA:850/900/1900/2100(HSDPA), FDD-LTE:800/1800/2100/2600
At home, on our old phones (Samsung Galaxy SIIX), we would get cell signals of -93 dBm or better (not great, but usable). With the P3000S phones in the same location (both of them), the signal is -110 dBm or worse (not usable - not able to make calls or send texts). There are no protective cases on the phones to interfere with signal.
I've tried the the following:
- choosing 3G only and WCDMA only networks and editng APN settings specifically for Koodo
- changing/adding build.prop entries for ro.ril
- posting in Elephone forums - no help
- contacting Elephone - no response
The P3000S is new - just came available mid-December. Elephone has issued one update since then. It did not help my signal problem.
I know this could be a hardware/antenna issue, but since the phone is new, opening it up to tweak/boost the antenna is not really an option - a last resort if I can't sell the phones to someone who is located where they will work.
So, my next step (I think), is to try flashing a new modem, but I have no idea where to start with that to find one that might be compatible with Koodo and the P3000S. I'm willing to try several, but it's very new to me.
Relevant info:
Octacore MTK6592 + MTK6290
Android version: 4.4.2
Baseband: MOLY.LR9.W1423.MD.LWTG.MP.V3.P3
I'd really appreciate any advice.
Thanks in advance.
Click to expand...
Click to collapse
Hello, i bought same phone and seems signal is ok. But i am probably not so far from BTS.
It seems your phones has worse antena then phone before, you can not solve this by software (ril mod, baseband etc.). You have to try to solve it by hardware mod, probably extend antena to get higher gain. Under and around NFC antena on back cover is enought space tu use copper foil strips, you can try make unclosed frame with connection on main antena.
Hi MioCZ,
Thanks for your thoughts. So you don't think a different region (i.e. North America) baseband/modem would help at all? The hardware tweak is my last resort - I'm not particularly fond of opening up a new device. And I don't exactly know what to look for as far as NFC antenna or main antenna. Any idea where these are located on this phone?
Again - thanks for your insight.
EDIT: Oh, I see you reference the antenna on the back cover as the NFC antenna. I can try to work with something there without opening up the phone? Or do I need to make a mod to connect the new copper to the main antenna from there? So I guess I need to know where the main antenna is. Is the 4G/LTE antenna the same one used for 3G/WCDMA/UMTS/HSPA? I'm not sure if there are separate ones. If so, the 4G/LTE antenna location is pretty clearly marked.
EDIT AGAIN: I answered my own question by reading up on cell phone antennas. Gotta love Google. So, I'm going to try to rig something up to the main antenna, which I assume is under the section marked "LTE 4G" in the upper right hand corner (when looking at the back of the phone). I'll post my results when I finish.
Engineering mode
You can call *#*#3646633#*# to enter to Engineering mode. It should have antenna test somewhere in menus.
Hi
heath3000 said:
Anyone have any ideas where I might start?
Click to expand...
Click to collapse
Hi, have you solved the issues on your phone?
I believe this is the same problem that I am facing with coloros. In fact he does not write the correct base band and when he writes, does not connect to the network 3G / 4G or make calls. is a mistake that just found this unit ... which makes the port of ROMs for this device and portability including future versions of android. It is not compatible with any other MTK6592 I know.
lena cui said:
Hi, have you solved the issues on your phone?
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Click to collapse
No, nothing I have tried helped.
Hi, i have a gt-i9100 and i noticed it has weak 2g/3g signal ,even compared to other old phones. In the same spot and with the same sim card ,only the i9100 is not able to receive phone calls and i also tried different usb flat port and different antenna cables and i tried also the only cmda 3g mode.
Are all the i9100 like this or mine is faulty ? Could i solve this if i buy another motherboard,even a chinese one? Thanks
check the modem you have and perhaps change it
https://sourceforge.net/projects/hcteam/files/GT_I9100/Modems/
I use Modem-XXMS4.zip for Europe. here are some list of codes of modem
https://forum.xda-developers.com/ga...-galaxy-s-2-shipped-modem-collection-t1131950
blue whale said:
check the modem you have and perhaps change it
https://sourceforge.net/projects/hcteam/files/GT_I9100/Modems/
I use Modem-XXMS4.zip for Europe. here are some list of codes of modem
https://forum.xda-developers.com/ga...-galaxy-s-2-shipped-modem-collection-t1131950
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Click to collapse
Thank you , i tried many different modems and many stock rom versions with ms2 , ms3 ,ms4 etc ,but in some places where the signal is weaker the s2 is always the only phone which is not able to receive calls,even if phone status info shows 10 asu and the icon has 2 bars. When the signal is a little stronger it works .
Did you never notice this problem compared to other phones?
I could buy another motherboard but i don't want to end up with the same problem if all the i9100 has this level of reception.....
If you have changed the USB board in the phone, then that is probably your problem. It likely has NOTHING to do with the modem.
There are several variants of the USB board and you *HAVE* to replace the board with the same variant you removed, otherwise loss of signal can occur...
I wrote a guide on this very subject.
It will help.
http://forum.xda-developers.com/showthread.php?t=2335961
Sent from my SM-G900F