Need help please! - AT&T Samsung Galaxy S II SGH-I777

Hi everyone. I'm having some serious (or at least I think so) problems with my I777. I live in Colombia, and I bought it over two years ago, had it shipped over by a friend, unlocked. Up until today I'd been using it normally, without any major problems.
However, the last couple of days it started behaving strangely, (turning itself off every once in a while, losing data, etc), so I decided to update my rom today.
I tried to install a new CyanogenMod 4.4 from this site, but I got some kind of status 7 error and it didn't behave properly after that.
Next thing I did to try to fix it was flash a stock JB 4.1.2 rom via Odin.
It worked, but that's when the major problem struck... Apparently my phone got locked for AT&T again or something. It's not recognizing my sim-card anymore. It shows the "no-sim" notification on the top bar, yet it also shows it has a signal (no data, just phone signal), even when my sim-card isn't inserted. When I go in the settings to try to access the mobile networks it says insert sim card even when it's in there.
I did a lot of searching and I used GalaxSimUnlock, which I got from this site too, and it confirms my phone is unlocked.
So basically... What the heck happened?? Is it possible that after three years of using it perfectly with my Colombian sim, the AT&T lock just "came back" or something after flashing a stock rom?
Any clue guys?

If you used galaxsimunlock the unlock is permanent.
Sent from my SGH-I777 using XDA Free mobile app

After you flashed back to stock, did you try to root again and flash another custom ROM?
I could be wrong on this, but the AT&T stock firmware may not be giving you the choice to register the SIM or change the APN settings for you particular network. I can't confirm this though as I never flash to stock long enough to actually use it. I always root and go back to something else immediately afterwards.
The only suggestion I have is to go back to a custom ROM and try again.
If you are trying to go to KitKat, be sure you have the newest compatible recovery (CWM or TWRP) as the versions of those that work with JB will not allow you to flash a KitKat ROM. There are plenty of threads that will tell you what versions you need. If it's an SGH-i777 model then all you should need to get the proper recovery is to flash one of the two KK compatible kernels as the recovery is packaged with them.
Good luck!

Related

[FIXED] Radio Flash: No Sim

I have a quick question because I've run into a problem I can't seem to fix.
First, so everyone knows what I'm dealing with:
Phone: i717
Changes: Rooted (Shows super user access), CWM v5.5.0.4, Unlocked (Tested)
Rom: Stock AT&T Rom
Sim Card: Works in a T-mo branded Exhibit II 4G.
I flashed a radio (tried KID, 0331122 from the radio thread in the dev section, and reflashed the original AT&T radio).Even w/ the original radio installed, it cannot seem my T-Mo sim now.
Do I need to flash a new Rom or what? Wipe data to factory reset?
I would rather not change anything w/o asking since flashing radios seems to be a straight forward thing that most ppl have done w/o touching the rom.
Thanks ahead of time.
Mine worked with a rooted stock rom at first it didnt see the sim then i tried searching the network under wireless and networks it took a few minutes but then it came up.
Sent from my SAMSUNG-SGH-I717 using xda premium
don't forget if you are running an ICS based ROM you need an ICS based Radio/modem.
EDIT: i see you're running the original GB rom so you need the GB radio.
give it a few minutes to find a signal or go to settings/mobile networks/network operators. choose manual. then let it search a few minutes. then select t-mobile.
I find the Blaze 4G radio worked best for me, but depending on your area, your results may differ. try em all.
You guys are insanely fast.
I'm currently on the stock radio & I'm still getting the same message after letting the sim sit in the phone for 9 minutes (yes, I watched the clock, lol):
Insert SIM card to access network services
Click to expand...
Click to collapse
Where should I go from here?
Edit: Is the answer flashing another rom? Maybe something has become corrupt? I don't see how as I've read & re-read walk thrus for doing this to make sure.
I've done a little more reading. Flashing the beta ICS rom flashes to the old AT&T modem.
Would this be the best bet?
Edit: After looking through the "about" phone...
I'm on 4.0.3
Baseband: Unknown............. that's really bad.
Edit 2:
After reading, I needed to back up the EFS. No where is this stated anywhere, unfortunately. That contains IMEI and everything else.
Edit:
So, after reading MORE, the IMEI number is on a sticker behind the battery, along w/ the S/N.
Huh? Efs? I dont even know what that is nevermind backing it up. Goto clockworkmod and flash the radio.zip and reboot. Thats all there is to it.
Sent from my SAMSUNG-SGH-I717 using XDA
madman604 said:
Huh? Efs? I dont even know what that is nevermind backing it up. Goto clockworkmod and flash the radio.zip and reboot. Thats all there is to it.
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
If you look up EMEI number related to flashing the radio, there's a lot of hits.
XDA has a thread on it here: http://forum.xda-developers.com/showthread.php?t=1352371
I'm quite shocked it's not mentioned everywhere as this happens to people now and again.
I have my IMEI number, i just don't know how to input it into the phone.
As for flashing the radio, I've flashed 2, then back to the original. To no avail.
Sorry never had anything like that. I would almost odin back to stock and start over. You dont need root for the sim to work on calls and edge with tmobile.
Sent from my SAMSUNG-SGH-I717 using xda premium
If you're baseband is unknown don't worry just flash a stock at&t modem and it should go back to normal. Your imei is under a different menu in about phone..the status one.
Also its no ones responsibility to tell you that modifying your phone may break it.
Sent from my SAMSUNG-SGH-I727 using xda premium
jamesd86 said:
If you're baseband is unknown don't worry just flash a stock at&t modem and it should go back to normal. Your imei is under a different menu in about phone..the status one.
Also its no ones responsibility to tell you that modifying your phone may break it.
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
I did flash back to the stock AT&T baseband as stated in the original post.
If I go to About Phone, the Baseband Version is unknown.
If I go to Status, the following are listed as
Network: Unknown
Mobile Network: Unknown
Service State: Out of service
Mobile Network State: Disconnected
IMEI: Unknown
IMEI SV: Unknown
I've backed up the EFS that I have no just so it doesn't degrade further. I'll try to flash again and see, but I still think the EFS is borked.
I'll see what I can, but I think I'll the EFS is borked beyond flashing it to normal.
My point about the EFS back up is that most ppl here don't seem to know what it is. It shouldn't be that foreign of a topic since flashing a radio is obviously problematic for some. I've seen other posts concerning no IMEI after flashing radios on forums other than XDA. It's odd that it's not mentioned as a sticky everywhere.
Backing up EFS would solve a lot of head aches from unlocking / radio flashing woes. I'm hoping this info will save a few people a lot of time and money.
After more digging, I came across this thread:
http://forum.xda-developers.com/showthread.php?t=1646326
Synopsis: Basically, he followed the same guide I did. The only difference is that I flashed the radio while using a stock AT&T rom. Once he flashed back to GB (saurom), he gained back his baseband / IMEI.
This is what I cannot figure out:
CWM will see and flash any radio file I push to my note. If I push a stock AT&T rom, it won't see it. If I put the rom in it's own folder, it seems the rom, but states there's no files.
Is CWM corrupted? Why would it only read firmware to flash radios, but not android roms? Should I just go back and install CWM?
I've searched all over & used google, but I can't find a thread discussing this.
Fixed.
This problem has nothing to do with any of the radios corrupting the EFS folder. Albeit, it's always a good idea to back it up.
Flashing back to AT&Ts stock rom (2.3.6 or 4.0.3) never fix the issue. You will always be stuck w/o a radio, at least from what I've seen. Even flashing back to the stock radio fails. I don't know if it changes the EFS, but AT&T's rom does not like it and shows no IMEI & a bogus SN .
I had to go back, flash to saurom and a compatible GB (or beta T-mobile) radio to get te work fine. ICS radios work fine on ICS.
Saurom and GB radios dont work in my i 717 trying to connect to wind. I got a CM 9 ICS build and ive tired a bunch of radios. they all failed. i keep getting no sim errors. I can see the operator but when i select it it times out and says it cannot connect to the network at this time. it also says interset sim. Im positive it is unlocked.
Modems(radios) or basebands should have nothing to do with whatever rom you are running. Whether they are GB, ICS, or JB modems, they should all work to a degree, at least for phone call ability. I have flashed many different radios trying to get the best function of my att note on t-mo. The best I got was using the Blaze modem. That got me 3g hspa.
The worst will be just giving you edge speed. My note is unlocked and has been on JB running blaze ICS modem working fine. Maybe you need to start over, evaluate what you have, and go from there. There are great threads on att over t-mobile. Good luck.
I picked my rom, and started flashing 5 or 6 radios, and found what one worked best on t-mo.
Presently, I have switched back to att- sort of- straight talk. I'm not thrilled with the speeds. No higher than 4 mbps DL, and 1-1.5 UL. Thinking about going back to t-mo and dealing with the slow UL speeds. I'm on an ICS rom with the ucle6 modem.
Also, flashing a rom does not change your modem. You have to physically reflash the modem you want. Some modems show up as unknown under the baseband. Blaze is one of them.
Another thought- sometimes a reboot will get your sim recognized by your phone.
sico987 said:
Saurom and GB radios dont work in my i 717 trying to connect to wind. I got a CM 9 ICS build and ive tired a bunch of radios. they all failed. i keep getting no sim errors. I can see the operator but when i select it it times out and says it cannot connect to the network at this time. it also says interset sim. Im positive it is unlocked.
Click to expand...
Click to collapse
This is yet another case of the "no sim" bug ....
Damn I wish we could find the answer to this issue, but none exist .....and for some users the return to complete stock even fails to recover service ..
g
Really what an incredible unlucky glitch.I got my note for only 360CDN good condition but missing the stylus, even still it was a good buy. I'm on Wind mobile, T-mobile here in Canada. I even gave it to somebody who's done a bunch and they ran into the no sim problem. I guess I'll be going back to my HTC HD2 and sell the note .
---------- Post added at 11:48 PM ---------- Previous post was at 11:44 PM ----------
So just to confirm I have followed the process correctly over 20 times and no matter which cm9 cm10 based rom and any ics or gb based radio will allow connection or recognize the sim to the 1700 aws network. With a cm9 based rom I can see my network, but it will not allow connection like the phone is locked, even though i have unlocked and tested the phone on other networks.
same here
Yes, I have the same 'No SIM' issue with a working WIND SIM. I've tried everything, multiple Radios, multiple ROMs. Very strange problem. I wish we had the tools that the SGSIII has for dumping and restoring the NV ram. Even stranger, I do have a the correct IMEI number in Phone, About. I have a feeling it's something to do with how the phones were carrier unlocked.
http://forum.xda-developers.com/showthread.php?t=1804117
I have made a backup of the EFS folder with EFS Pro. I tried restoring the NV ram from .bak but there was none found.
http://forum.xda-developers.com/showthread.php?t=1308546
tweebs said:
Yes, I have the same 'No SIM' issue with a working WIND SIM. I've tried everything, multiple Radios, multiple ROMs. Very strange problem. I wish we had the tools that the SGSIII has for dumping and restoring the NV ram. Even stranger, I do have a the correct IMEI number in Phone, About. I have a feeling it's something to do with how the phones were carrier unlocked.
http://forum.xda-developers.com/showthread.php?t=1804117
I have made a backup of the EFS folder with EFS Pro. I tried restoring the NV ram from .bak but there was none found.
http://forum.xda-developers.com/showthread.php?t=1308546
Click to expand...
Click to collapse
It has nothing to do with your unlock. If you've followed the steps and are still having no sim issue you may have to get a new 32k sim card from wind the older ones won't connect in a phone with lte
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Had to replace the TMo SIM card with a newer one today. Solved the problem of "No SIM".
I know this is old
I have the same problem with "NO SIM." One day i flashed so many things to my phone and one time i turned it on i got ATT on the top right corner and everything was good. I made some phone calls and texts and even browsed the web. I restarted the phone to check if it was just a fluke and it was. Ever since then i cannot get it to read my phone, but i know for sure the hardware works.

[Q] Manual network selection disabled.

New S3 on UK Three Mobile.
I have an issue that mainly only affects N Irish users I suspect.
Just bought a 3Mobile S3 and I love it. However on 3 firmware, network selection is locked to automatic. I can manually change, but the phone sill change again of its own accord if the signal I chose isn't available.
The reason 3 do it is so that if 3 isn't available, the phone will roam onto Orange's network as a backup. That's all fine if you're in mainland UK! If you're in N Ireland and near the border, you will frequently roam onto Irish networks and run the risk of charges for receiving calls.
Last time I had an android phone I got the firmware flashed and this solved the problem. So far, I rooted the phone and installed a custom Rom, Omega. This didn't solve the issue. Am I missing something? Does installing the Rom not also flash the firmware? Or do I have to try a different Rom?
Going to try a stock firmware from here now. Any other advice would be greatly appreciated.
Nobody?
Installed the stock unbranded firmware last night, plus side was the network selection issue is now gone, but the down side is that it seems to have removed my root access.
I I root it again using the threads here, will that overwrite the firmware again?
Flashing a Samsung-ROM will revert all your changes (including root access) and replace the modem. I've heard that Three has it's own modem which works better than the standard on their network, so you might want to flash it (=the modem, not the firmware) on your phone.
Rooting a phone doesn't make you loose any data or change the ROM. Just use CF-Root and you should be good to go.
Thanks. Already used c.f. root again and all is well.
Any Idea where I can fInd the three modem?
Phil Gordon said:
Thanks. Already used c.f. root again and all is well.
Any Idea where I can fInd the three modem?
Click to expand...
Click to collapse
im curious to know too... i've installed a unbranded official rom from three's branded one and if the modem is better i think i'd want to install that too
Every modem has it's own name, so try getting the name from someone who has a stock '3' S3. Then you can google it.
I'm not sure though if they got their own, I _think_ they do
However a network-specific modem must not always be the best.
I've got nearly double throughput over here with the exotic ZNLF2 modem. (Afaik it's Hong-Kong)
So trial-and-error is usually better than just keeping what it was shipped with

[Q] HOX+ WiFi/SIM/Bluetooth Error

Hi Guys,
I desperately need help, i have a new HTC One X+ bought online from Hong Kong, I unlocked the bootloader through HTCDev and then tried to root the device using RootBootV5, this was all with the stock rom installed.
All of a sudden my sim, bluetooth and wifi will not work, when I say wont work I mean the phone looks like it has no sim inserted, and the bluetooth and wifi wont even switch on.
I tried wiping the rom with CWM and installing AOSP ROM, the rom installed fine but the problem persists.
Do I need to re-flash the radios or something?
Please can someone help me!!
adamdaj said:
Hi Guys,
I desperately need help, i have a new HTC One X+ bought online from Hong Kong, I unlocked the bootloader through HTCDev and then tried to root the device using RootBootV5, this was all with the stock rom installed.
All of a sudden my sim, bluetooth and wifi will not work, when I say wont work I mean the phone looks like it has no sim inserted, and the bluetooth and wifi wont even switch on.
I tried wiping the rom with CWM and installing AOSP ROM, the rom installed fine but the problem persists.
Do I need to re-flash the radios or something?
Please can someone help me!!
Click to expand...
Click to collapse
I had the same problem on my first go. What I did was re-locking the bootloader and then reflash the original firmware (from desktop). All worked fine again. Then I unlocked again and rooted (also via rootbootv5). Maybe it would have been enough just to flashboot a propoer boot.img and any of the fine stock-derivative roms... However, I do not advise to use CWM. I had odd results with that (including failing nandroid). Since I use TWRP as recovery, all is just fine...
Mmm was thinking of doing that but I couldn't find the original RUU anywhere on the net, any ideas?
Sent from my Galaxy Nexus using xda premium
http://forum.xda-developers.com/showthread.php?t=1918325
However, I needed to subscribe to the site and it is one of those subscriptions you cannot cancel, so I ended up blocking my credit card and ordering a new one... quite a hassle. This was roughly a month ago, maybe your lucky and there are mirrors now...

[Q] GT-I9305 has multiple issues

My Galaxy S3 GT-I9305 LTE was running Liquid Smooth 2.37. Recently I lost notification and phone ring sounds and now I have lost baseband and I have no cell signal.
In the phone's 'about' section the baseband field is empty. Android version showing is 4.3.
I'm not quite sure what I did wrong, first to try and get back the sounds and then baseband, I have been playing around with various custom and stock ROMS and kernals to get full functionality back.
I've read tons of help posts but nothing works.
Here's a few of the things I've tried with results in brackets, used CWM recovery to restore working backup (failed 'unsupported file' message),
reflashed kernals (neither Boeffla nor yank555 have worked, wipe/data restore in CWM (it still takes me back to 4.3 with no baseband).
I thought I'd re-flash back to the phone's original stock ROM using Kies, but the weird thing is Kies doesn't restore, it upgrades to the latest 4.3 ROM which fails to restore baseband.
I wanted to send the phone back to the 4.1.2 it came with or was it an earlier ROM? I can't remember as I didn't note it down, I bought the phone second hand, it arrived loaded with a stock ROM for Australia's Optus network. I promptly rooted and flashed the phone to Liquid Smooth and the phone ran fine for months on the 2 Degrees Network in New Zealand.
Anyway, I must have tried reflashing a dozen stock roms I've found online using Odin. Some of them partially work, I get sound back, (it seems only the 4.3 ones work, with the german I9305XXUEMKC reliably loading - it even gives me a NZ english install option) but don't restore the baseband
. All the ones I've found for Optus are rejected, I get the 'unsupported device' or status 7 error in Odin.
So I decided to flash one that works, install cwm, root the phone and try installing different baseband kernals to fix the (probably corrupt) efs.
But I'm going round in circles trying to root the phone. Using CWM, supersu shows as successfully installed, but when I boot into the OS root checker shows my phone is not rooted. Knox seems to obstruct every attempt I make to disable it as well. I keep getting these 'knox stopped etc...from working messages'.
I'm sorry if my description is a bit confusing, I'm happy to clarify anything.
I'm at my wits end. I want to try everything before I have to ship the phone off to a repairer who may charge me hundreds of dollars to fix the phone.
This is I9300 not I9305 Q&A
Use the report button and ask a mod to move to the correct forum .
I can offer no help as i fail to understand the post .
As said before you are in wrong place and are not giving us a clear question to answer. If its a root problem there are fixes for it. Status 7 error is discussed in many threads. Flashing MG4 modem fixes efs problem. Downgrading causes problem. Learn to search before making a thread.

[Q] Intermittent network problem GT-i9300

Hi,
Firstly thanks for time and sorry if this is a noob question but I only have a fairly small amount of experience regarding custom roms.
Here goes...
I have changed the rom on my phone about 5 times over the last couple of years and never had a problem. I have the latest version of teamwin and I'm currently running Android Revolution HD 50.0 by mike1986. This rom works great as have all the other I have used in the past ie Cyanogenmod, Omega etc but the problem I am having is over the last 4 months I am completely losing network and even if I try to search for a mobile operator my phone can't find any unless I run a full power cycle.
I have been reading as much online mainly xda-developers to find a solution to this problem but I'm afraid I'm now just running into a brick wall. I understand this could just be a hardware fault but I have read somewhere that I may have the wrong modem installed for my phone.
How likely is this? Can having the wrong modem cause intermittent problems? Also if this is the case where the I find a tutorial on correcting this issue. Plus which modem should I be using in the UK?
Again thanks for you time and any help would be much appreciated.
Mike
Do a full wipe and flash the latest stock firmware for your country, then factory reset.
Test fully before you install or restore anything. If it is still the same then probably hardware.
Sent from my GT-I9300 using Tapatalk
ok, Will do. I am just waiting for the UK stock firmware to download. I left it downloading while I was out this afternoon and for some reason it failed and now is asking me to wait an hour before retrying
I'll let you know if this solves my problem.
Thanks
ok..
I managed to get hold of the stock firmware from another site. I first installed a version of ICS so I could run triangle away properly after rooting with CF auto root as without doing this I couldn't reset my binary counter even after flashing stock recovery. Then I installed the latest version of JB and ran the official Samsung update to get my phone up to the very latest Official software with device status official.
So now my phone is completely back to if it just came out of the box. I finished late last night and installed nothing but WhatsApp. Then at about 3pm today again I completely lost network and couldn't restore in without a full power cycle. Even searching for Network operators in settings couldn't restore the connection. I can't think of anything else to try.
Any ideas what to try next please?
P.S. The firmware I installed is as far as I can tell for my location. I'm in the U.K. and I'm using the stock BTU version on baseband version I9300XXUGMK6
the same i9300 problem
Mike_aMPLe said:
ok..
I managed to get hold of the stock firmware from another site. I first installed a version of ICS so I could run triangle away properly after rooting with CF auto root as without doing this I couldn't reset my binary counter even after flashing stock recovery. Then I installed the latest version of JB and ran the official Samsung update to get my phone up to the very latest Official software with device status official.
So now my phone is completely back to if it just came out of the box. I finished late last night and installed nothing but WhatsApp. Then at about 3pm today again I completely lost network and couldn't restore in without a full power cycle. Even searching for Network operators in settings couldn't restore the connection. I can't think of anything else to try.
Any ideas what to try next please?
P.S. The firmware I installed is as far as I can tell for my location. I'm in the U.K. and I'm using the stock BTU version on baseband version I9300XXUGMK6
Click to expand...
Click to collapse
Hi I am have the same problem.. I've tried 2x reapir store.. but just can say: "you need put new main board".
But I have trust that its not better solution (at least for me).
So if you find some solution, please dont forget reply here.
Thanks
O2 by any chance? .. if so it's a network issue. It happened to me a while back but cleared up after a day or two.
shivadow said:
O2 by any chance? .. if so it's a network issue. It happened to me a while back but cleared up after a day or two.
Click to expand...
Click to collapse
This is exactly the issue I have now - I can get some signal, but can't get anything in terms of using 3G/Mobile data :/

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