Hello,
I'm looking for some help with my son's sgh-i757m phone. I'll try layout my history on the phone and question in some hopefully easy layout.
What I did
at my son's request, I changed the stock rom on my son's sgh-i757m (Samsung Galaxy S2 LTE) for him. He wanted to be able to install apps and customize his phone as he wished. i installed the paranoid android rom for him successfully.
Problem
Once installed he began losing cell phone network connection. This progressively got worse and now it barely works.
My troubleshooting
I tried installing other custom rom's to see if this would resolve the problem. Nothing seems to work. The present rom I have which is Dadoes. This one seems to work the best BUT i only get signal within 1 block of the cell phone tower. (oh ya... i live in a small town where we only have two cell towers in the valley here.)
I tried researching terminal commands to boost the radio signal but I haven't found anything for the sgh-i757m.
I've also done the *#*#4636#*#* trick... nothing... i've installed network boosters but those don't do anything.
What Haven't I done
I haven't tried to install a different radio rom... (maybe I did, but in my research there isn't an explanation if this is different from the OS rom).
I haven't tested whether it is a hardware issue as I don't know how
What I am asking
Can I get help regarding radio roms; is this different from OS rom's? if it is different... where do I find them and more information on this?
Can I get help on steps to test my hardware to see if this is the issue?
Any pointers if I am missing anything?
Thank you... oh and this is my first post.
I'm out of lurking and posting now.
Respectfully,
KrustyQ-tip
I
HI buddy , welcome to our section .
Now your problem, did you tried to reflash the stock ROM back after you saw that your phone is having problems to see if the problem is solving?
I did took a search on this forum and I found this thread :
http://forum.xda-developers.com/showthread.php?t=1707126
There you'll find a cwm and other useful stuffs for your phone
Sent using my Zanpakutō{斬魄刀} using my Shinigami POWERS{死神} <+> ლ(◣_◢)ლ
Fixed - sgh-i757m connection problem
Well... thank you for your reply. I didn't have a backup of my son's original rom but my daughter just broke her phone and it was exactly the same. So, I thought I would back her's up then put it on my son's. What she did was break her screen. So, I thought I could swap screens or parts to make this work. I was able to take my daughters apart and was able to take my son's apart. In taking apart my son's phone, I found that the attenae cable wasn't attached to it's connector. So I plugged that in then tested and voila! It works!! pheew!! Was getting worried that I was losing my mind (maybe I did?).
Thank you for your help. I did do the custom roots and roms. Now my son can choose which one he wants!
Respects,
KrustyQ-tip
Related
Hi guys,
i know this has probably been asked a 100 times and i was searching for it on the forums and on google for 2 hours, but i couldnt find a fitting guide to it (i found tons of guides how to root it per se, but not how to save/backup the stock rom in case i would need to restore it to stock one day.
thanks in advance
crnkoj said:
Hi guys,
i know this has probably been asked a 100 times and i was searching for it on the forums and on google for 2 hours, but i couldnt find a fitting guide to it (i found tons of guides how to root it per se, but not how to save/backup the stock rom in case i would need to restore it to stock one day.
thanks in advance
Click to expand...
Click to collapse
This phone just came out. It takes time for developers to start developing. Saying that, there is no way to back up your current ROM as of now. That requires a custom recovery which has not yet been made for the Atrix.
OH, and about rooting, it won't brick your phone. I'm can't think of one phone that has got messed up from the rooting process. And if you need to unroot to "return it to stock" just unroot it. It's one of the features in SuperOneClick.
ok great thank you very much. just on a second thing, maybe if you know? i have a terrible problem with the phone. i got me a sim unlock code, that worked (can put any sim in as i l ike) but the thing is if i put a sim that is active (so it gets signal bars of my carrier) the wifi connection instantly stops working in goes into what seems to be some sort of scanning/disconnect loop. i can repair that only by hard resetting it with an old sim that doesnt get any reception, so that the wifi works than. oh and i can do calls and stuff with the working sim. so im terribly nervous right now. i found some things while googling that the wpa_supplicant is bugged on the stock 2.2.1 (what the phone is running apparently), so i tried to change the file (just did the things) and it didnt help, still the same issue. and i sort of have a problems since im now in europe and well cant really return the phone oh and otherwise the wifi works perfectly .. and another thing wifi wont work ever after inserting the working sim, even with the nonworking sim wifi still has the same problem.
Hi
Recently my S2 just stopped reading my SIM when I was going to call someone. Since then it has refused to read my SIM, or any other SIM for that matter.
To fix this problem I've tried resetting the phone to factory settings (in 3 different ways ( hard-reset.com/samsung-i9100-galaxy-s2-hard-reset.html )) with no luck.
I've also tried installing alternative ROM's, but with the same result.
The phone was already rooted with an insecure kernel when this happened, so warranty is long gone.
Though, one thing I did realize was that even though I did hard-reset the phone several times, some of the settings on the phone remained untouched, like my locking pattern and a few other settings. Does this mean that hard-resetting the phone isn't really an actual hard-reset? If that's so, is there any way to properly 100% reset the phone?
In short; I'm running out of options on how to fix this. I refuse to believe it's hardware related, just because I'm stubborn like that.
Any help would be greatly appreciated (really).
Habitats said:
Hi
Recently my S2 just stopped reading my SIM when I was going to call someone. Since then it has refused to read my SIM, or any other SIM for that matter.
To fix this problem I've tried resetting the phone to factory settings (in 3 different ways ( hard-reset.com/samsung-i9100-galaxy-s2-hard-reset.html )) with no luck.
I've also tried installing alternative ROM's, but with the same result.
The phone was already rooted with an insecure kernel when this happened, so warranty is long gone.
Though, one thing I did realize was that even though I did hard-reset the phone several times, some of the settings on the phone remained untouched, like my locking pattern and a few other settings. Does this mean that hard-resetting the phone isn't really an actual hard-reset? If that's so, is there any way to properly 100% reset the phone?
In short; I'm running out of options on how to fix this. I refuse to believe it's hardware related, just because I'm stubborn like that.
Any help would be greatly appreciated (really).
Click to expand...
Click to collapse
You can refuse to believe in gravity too, but falling from high distances will still hurt.
If you tried more than one SIM in the phone and none work, but those same SIMs work in other phones, than more than likely, it is hardware related.
Did you check you imei?
078gregory brings up a good point. So if it's not missing IMEI info, THEN it's likely hardware.
Isn't it funny how everything suddenly works itself out once you cry out for help?
Today I've been trying around 10 different ROM's on the phone. Custom and stock. As one last attempt I gave a random ICS 4.0.3 march ROM a last try, and guess what. I got the SIM prompt. I can not believe it. So yeah, it's working now. I have no idea what caused it, but I believe the phone was stuck in flight mode somehow, and just needed an extra push to get out.
Either way, it's working like a charm now. Thanks for the replies though.
Habitats said:
Isn't it funny how everything suddenly works itself out once you cry out for help?
Today I've been trying around 10 different ROM's on the phone. Custom and stock. As one last attempt I gave a random ICS 4.0.3 march ROM a last try, and guess what. I got the SIM prompt. I can not believe it. So yeah, it's working now. I have no idea what caused it, but I believe the phone was stuck in flight mode somehow, and just needed an extra push to get out.
Either way, it's working like a charm now. Thanks for the replies though.
Click to expand...
Click to collapse
Don,t forget to press THANKS button on ctomgee
Hi people. I have the same problem Habitats decribes. Mi s2 is stuck in flightmode and cant get out! i have reset the phone in every kind of way but no succes. Now i read here on this forum that flashing my phone to ICS 4.0.3 can help solve the problem. I'm on 2.3.6 now. This flightmode thing happened al over sudden. I have done nothing strange with the phone. Its not rooted either. I was planning to go to a samsung servicepoint and let them check whats wrong. But now i read this thread and see that i can relate to this problem of Habitats. I think a also will try to flash ICS 4.0.3 and watch what happens. But theres another problem. KIES don't recognize my phone anymore so what can i do? Can someone please help me out? Thanks in advance
I'm having the exact same problem, could you please tell me which rom worked for you Habitats? Thanks in advance!
Update:Last tuesday i went to the vodafone store were they have a samsung service department also. I explained my problem to them but they don't seem to recognize the problem. Although i read that many people here at xda's and over the internet have similar issues with this phone.Strange! So they sent it to the repair centre. Yesterday i could see in the track and trace menu of the repair centre that my fone was ready and send back to the vodafone store. Status: Boardswap. So they swapped the whole board! Didn't know that the problem was that serious! So i hope i can pickup my galaxy s2 soon this coming week!! I can't wait!I'm on my old HTC Touch HD now. Its ok with the windows but on Android....Arggghh!! Whatsapp is a pain and more. Its so laggy!. I will give an update soon again!
Hi there! With SGS III being my third from the Galaxy family, I did not waste any time and flashed first custom rom the very hour I bought the phone. Everything was really great - I've been through Android Revolution, Omega, Wanam and couple more, but it all seemed too good to be true. Two days ago somethig went wrong with my data connection - I noticed it while I couldn't connect to Facebook. The "H" icon was in place and by the arrows I saw that it was "working" all the time. The problem was (and still is) that no data actually goes through. I tried different radios, kernels and roms - to no avail. I've read something about botched or misplaced IMEI issue, but checked it right after that and it is intact. To be sure I tested my SIM card in other phone and the data connection is working flawlessly. APNs checked. I'm getting quite nervous because I've only got my SGS III for three days and already it's.. Not entirely functional.
If you have any idea what this may be about, I'm happy to provide any information needed to identify my problem. Thanks in advance for saving my S III..
Sad to hear, unfortunately it seems you already tried the common solutions to solve such an issue, the only additional thing coming to my mind is to flash a stock Rom with odin, if it doesn't work do the same with a pit file or change your csc, because the last two options reset your whole user data to stock and your internal sd as well (don't forget to backup your data) it should solve it.
Maybe there is somewhere a leftover which causes your problem, good luck
Sent from my GT-I9300 using Tapatalk 2
roshi87 said:
Hi there! With SGS III being my third from the Galaxy family, I did not waste any time and flashed first custom rom the very hour I bought the phone. Everything was really great - I've been through Android Revolution, Omega, Wanam and couple more, but it all seemed too good to be true. Two days ago somethig went wrong with my data connection - I noticed it while I couldn't connect to Facebook. The "H" icon was in place and by the arrows I saw that it was "working" all the time. The problem was (and still is) that no data actually goes through. I tried different radios, kernels and roms - to no avail. I've read something about botched or misplaced IMEI issue, but checked it right after that and it is intact. To be sure I tested my SIM card in other phone and the data connection is working flawlessly. APNs checked. I'm getting quite nervous because I've only got my SGS III for three days and already it's.. Not entirely functional.
If you have any idea what this may be about, I'm happy to provide any information needed to identify my problem. Thanks in advance for saving my S III..
Click to expand...
Click to collapse
Flash a stock rom with Odin and perform a full wipe *2767*3855# in the phone dialpad. Save important files to the pc first. This should fix it all. You can reroot after that and make a cwm backup of your stock rom.
-Edit- double post, Follow the above
Thank you both for your suggestions, but it seems that I'm stuck with I-do-not-know-what.. :/ Flashed stock rom and new radio via ODIN, but the problem with really slow HSDPA connection is still present. I am worried it might have something do do with IMEI after all - it seems that here http://forum.xda-developers.com/showpost.php?p=29461950&postcount=3 they are explaining similar issue, but I haven't lost my IMEI (not to mention backuping nor restoring anything). What is more, I do not only have EDGE icon, but HSDPA as well, but the connection is slower than GPRS. Damn it..
EDIT EDIT EDIT! The Preowner of the phone had pocked a hole into the assist antenna thinking it being an Hw reset button, this made reception very Poor,
I fixed it using Information found on this Thread : http://forum.xda-developers.com/showthread.php?t=1148431 So check the Assist antenna next to the battery if you experience similar on the stock room, It might be damaged or also poked by the preowner!
--------------------------
(Original Post)
Hey Xda, Its me Moony. after bricking my nexus s and being an iphone user ever since i've now finally gotten a new android, its an x10 that my friend threw out because of him not liking it anymore. i updated it to 2.3.3 and didn't want to mod it further, so i didn't but when i got home the next day i noticed it saying "no service" no matter where i go here?? I live rather far out on an ranch but all my other phones got network connections here? Can somebody tell me how to save my brand new phone?
-Moon
Maybe try to install fresh gingerbread thru PC companion.
Hi,
This is Sreehari. I asked this question in the "XDA Assist" forum, but since there is no forum for my device I was suggested to post it here.
the following is what my issue is:
I have been sing Gionee Elife E3 from October last year. First 3-4 months it worked without any problem.. But after that, it started to have frequently signal strength problems..
Frequently the signal bars goes from full to cross very fast. I cannot make a call at that time, but if I put the same SIM in another phone there is no problem. Even rebooting the phone doesn't solve the issue. many of my friends started to say that it is impoosible to get me on the phone most of the time..
Then I gave it to the service center and they flashed it.. It worked well from that point for around 2 weeks, then the problems started again.. after that I started flashing it on my own.. I installed the Chinese firmware to install custom ROMs (for Indian firmware custom ROMs were not available till recently) to see how it goes.. I tried the ColorOS over the Chinese firmware and things felt alright for around 2 weeks again.. now the problems started again and more severe than ever.. the phone is practically useless now that it cannot be relied at all..
I completely annoyed and puzzled by these.. if it is a firmware problem how does it go away after flashing and return after sometime? Could it be a problem with the radio/modem software?
I love this phone, it is awesome model and I don't want to leave it.. can anyone help me? I am not an Android developer but I do have some knowledge on flashing, recovery, backups etc. I can post any screenshot or logs as needed.
PS: I have a doubt on its wi-fi range as well since that also seems to drop very fast, not completely sure though..
Sreehari
can anyone help??