Im sorry to be asking this (I've searched the forums and google and can't find anything conclusive)
Background:
I have a service contract with AT&T and I'm currently a customer of them. I used to have the Galaxy S4 (i747), and the usb charging port stopped working. I took it into a repair shop where they messed the whole phone up and had to give me back the phone with a whole new board in it, the only problem with the new board it's a board for i747M. I was having issues with the phone being stuck on edge - so I proceeded to unlock it again (I do not trust the work they did, and even thou I had network with my AT&T SIM Card, I had to make sure it was unlocked), I also restored the old IMEI - and after all this I was able to get out of edge.
The problem:
Even thou the phone reports 4G LTE, the internet is super slow!!
I made a speed test and the speeds are at 256 download // 512 upload - WEIRD!
The new board is for i747M - I already restored the IMEI to the one the original board had, I checked my APN and everything is in order.
(Did I missed anything? other than calling the repair shop and scream at them!)
I was wondering if I flash an i747 modem (MJB to be exact, since I'm on 4.3 with MK5), will the speeds improve, or will I brick the phone?
Any help greatly appreciated, I'm desperate!
ugartina said:
Im sorry to be asking this (I've searched the forums and google and can't find anything conclusive)
Background:
I have a service contract with AT&T and I'm currently a customer of them. I used to have the Galaxy S4 (i747), and the usb charging port stopped working. I took it into a repair shop where they messed the whole phone up and had to give me back the phone with a whole new board in it, the only problem with the new board it's a board for i747M. I was having issues with the phone being stuck on edge - so I proceeded to unlock it again (I do not trust the work they did, and even thou I had network with my AT&T SIM Card, I had to make sure it was unlocked), I also restored the old IMEI - and after all this I was able to get out of edge.
The problem:
Even thou the phone reports 4G LTE, the internet is super slow!!
I made a speed test and the speeds are at 256 download // 512 upload - WEIRD!
The new board is for i747M - I already restored the IMEI to the one the original board had, I checked my APN and everything is in order.
(Did I missed anything? other than calling the repair shop and scream at them!)
I was wondering if I flash an i747 modem (MJB to be exact, since I'm on 4.3 with MK5), will the speeds improve, or will I brick the phone?
Any help greatly appreciated, I'm desperate!
Click to expand...
Click to collapse
You are unlikely to brick the phone by flashing the modem alone (although I affirm no guarantees to this effect) unless you try to flash the wrong bootloader and/or ROM. You did not, however, say which ROM your phone is currently on. Is it currently on the I747MVLUEMK5 or I747UCUEMJB? There is always a problem with incompatibility between your modem and ROM respectively which is what you'll have if you flash the MJB model whilst on the MK5 ROM plus, of course, subsequent firmware upgrades may be compromised. Are you sure also it's not an hardware issue you are having and the "repair shop" didn't muck up something on the mother board or install a dud? At this stage, however, I don't see how you have much to lose in trying a different modem. If it doesn't help, you can always go back to the previous one. All discussions about warranty are probably off the table already.
Larry2999 said:
You are unlikely to brick the phone by flashing the modem alone (although I affirm no guarantees to this effect) unless you try to flash the wrong bootloader and/or ROM. You did not, however, say which ROM your phone is currently on. Is it currently on the I747MVLUEMK5 or I747UCUEMJB? There is always a problem with incompatibility between your modem and ROM respectively which is what you'll have if you flash the MJB model whilst on the MK5 ROM plus, of course, subsequent firmware upgrades may be compromised. Are you sure also it's not an hardware issue you are having and the "repair shop" didn't muck up something on the mother board or install a dud? At this stage, however, I don't see how you have much to lose in trying a different modem. If it doesn't help, you can always go back to the previous one. All discussions about warranty are probably off the table already.
Click to expand...
Click to collapse
I'm using S3Rx for i747M (MK5) -- and latest modem for at&t is MJB, but my board it's not AT&T anymore so Im guessing Im not gonna be able to flash the modem
it's too too slow I downloaded the Speedtest.net app and it's reporting: 0.14 Mbps download and 0.10 Mbps upload:crying:
Related
Hello everyone I have a s3 and I'm using it it with mobilicity provider. Every time I turn the phone off it takes like 5 mins to register to network? Does anyone know why. My friend note 2 register right away. Does s3 have bad radio?
Sent from my SGH-T999 using xda premium
Anyone??
Sent from my SGH-T999 using xda premium
I don't think the radio has anything to do with it. What kind of connection are you getting when it registers?
My unicorn died, back on the pony.
Let us know not just what it says in the status bar when it finally registers, but also, after booting up, go to Settings > About Device > Status and post what it says for Mobile Network Type, both before and after it connects.
Also, please post info about what firmware you are running. Are you rooted? Custom Rom? Have you flashed any kernels or modems? Did you try wiping Dalvik and Cache from recovery? Try factory reset?
I would normally agree with Vopezy about the modem, but in your case, I have to wonder about it since you are on a carrier that usually has the T999V model phone. If you want to give it a shot, you could try to flash one of the Mobilicity modems.
First go to Settings > About Device and write down your current baseband, in case you need to flash back to it.
You can find the T999V modems at the bottom of the OP in this thread: http://forum.xda-developers.com/showthread.php?t=1880987
Just to be clear, I dont usually recommend flashing a different models modem. Usually this is because in most cases it simply wont even establish a connection. (most times its a T999V user wanting to flash a T999 modem, but staying on their own network) As best as I have been able to tell, the T999 and T999V are virtually identical. I do know the modem partitions are the same, which is why you can flash the modem, it won't brick your phone, but it just may not work, forcing you to flash back to the original.
Because they are practically the same phone, and from what Ive read, T999 modems don't work on canadian networks, it seems logical that the T999 phone would have problems....unless it had a T999V modem. I hope that makes sense, I want to try to help you understand what you are doing and why.
If that does not work, or you want to try something else first, you could try swapping SIM cards with someone on the same network as you. If their SIM works fine in your GS3, or your SIM works in their phone, then its most likely either a SIM or account issue. If their SIM does not work on your phone, but yours does work on theirs, then its either SW or HW and not an account issue.
Something else you can try is flashing some of the other T999 modems, and/or try flashing the stock firmware via Odin. This would only help if there was something corrupted in the system partition that was causing your problem. Possible, but not probable.
As a last resort, and this would require a bit more work to pull off, you could try to flash the Mobilicity Firmware using Odin. (Or if I have the time I can try to build a quick rom out of the firmware so it can be flashed in recovery...this would be safer)
Either way, if it comes to that, please do not try to Odin flash the fw on your own. It will almost certainly fail. I will probably need to modify something to make it work.
The more I think about it, the more I am leaning towards trying the Mobilicity modem. Let me know if you have any questions or concerns about doing any of this.
Sorry its so much at once. Ill probably be logging off soon, so wanted to leave you with more than one thing to try until Im back on.
Good Luck!!!
Thanks a lot it worked so it's a sim card issue cause mobilicity have new Micro sim cards and I had the older one and I was activating a customer today and tried her sim on my phone and it registered right away. Thanks
Sent from my SGH-T999 using xda premium
Well, first things first...
I am a noob, and this is the first time I am using an android phone (moving from the Nokia N97 and Nokia C6). So please be patient (and tolerant).
The dealer I got this phone from wasnt sure if it was soft-unlocked (the ones which get locked if you update OS) or otherwise, and he most certainly didnt have (or give me) the unlock code.
The phone has been a delight for the past 3 months, and I love the the stunned look on the faces of everyone around, when I slide open the keyboard!! However, after doing a google search I discovered that there's an ICS update for the i927. And that has resulted in me googling to find out the likelyhood that my phone will re-lock to ATT.
To my surprise (or inability), I couldnt find a definite answer/guide as to what users of unlocked i927s, who do not have the unlock code, should do exactly, to "safely" update to ICS.
I have downloaded most of the tools (Odin 3.07, EFS 2.0.7 and the "I927UCLJ3_I927ATTLJ3_ATT" stock from samfirmware). And I had KIES and the drivers installed from day 1.
But the problem is that I dont have a road-map. Or a troubleshooting guide, in case I encounter unanticipated errors/crashes.
The other thing is uncertainty about the phone getting "re-locked". Some mobile repair guys say I should flash the update with my eyes closed (it wont re-lock to ATT, they say). However, the other side disuades me, and I have yet to find an across-the-counter shop which will give me an unlock code.
Of course, I think I can live without the update if I have to. But, I was hoping for a bit of help (or a step-by-step or link-by-link guide).
The other thing I want to know is whether flashing the ATT ICS update can also corrupt my IMEI details (and hence the need to back up with EFS)??
Finally, I would like mention that my phone is an un-rooted i927 (ATT) running Android 2.3.6.
Any help would be really be appreciated.
Not sure what to make of this..
The lack of replies has made me (even more) doubtful if a noob like me would be able to update my i927. I hope someone can tell me if my i927 is "updateable" or is the ICS update preferably for only the "authentic" i927 handsets??
sachnadkarni said:
The lack of replies has made me (even more) doubtful if a noob like me would be able to update my i927. I hope someone can tell me if my i927 is "updateable" or is the ICS update preferably for only the "authentic" i927 handsets??
Click to expand...
Click to collapse
If you have a SIM card from something not using the AT&T network, put it in. That will tell you if your phone is SIM unlocked or not (I think that's what you're asking).
In theory, applying the ICS update may re-lock your phone; it depends on how it was SIM unlocked in the first place.
My recommendation is:
1) Update to ICS (it's worlds better than GB)
2) If the phone re-locks to AT&T, then just buy and unlock code for a few dollars
phone's current status
scotte9999 said:
If you have a SIM card from something not using the AT&T network, put it in. That will tell you if your phone is SIM unlocked or not (I think that's what you're asking).
In theory, applying the ICS update may re-lock your phone; it depends on how it was SIM unlocked in the first place.
My recommendation is:
1) Update to ICS (it's worlds better than GB)
2) If the phone re-locks to AT&T, then just buy and unlock code for a few dollars
Click to expand...
Click to collapse
I am already using a local SIM card on the phone (Airtel) since the day I bought the phone. All the features are working on the phone, except the WiFi tethering, which is also the biggest reason for my doubts (and reluctance) about flashing the ICS update. The WiFi tethering feature does not recognise my Airtel data connection (2G), making me to believe some features are still AT&T specific (like the ringtones feature).
The other thing is, re-locking is a significant concern, but its not the biggest concern (for me). Since I first visited the "Captivate Glide" section on this forum, I have read about problems like the IMEI number (or other important phone data) corrupting, bricking my phone (which I know no one in the world can guarantee against), or the phone getting stuck in the start up mode (read it somewhere here, although I dont know if it was an OS update related failure).
Anyways, I hope that clears up the current status of my i927, and thanks for replying.
A bit more help please...
I know I asking basic noob questions about updating, but I was hoping for a bit more guidance actually...
Like what do I do with the I927UCLJ3_I927ATTLJ3_ATT.zip file?? Do I unzip it, or just copy it the phone memory and reboot into Odin??
The other thing is I started the EFS app on my PC and connected my phone to it, but the IMEI and other numbers are just all 0s. So, I am thinking, I did something wrong there as well...
I am well aware that no one in the world can guarantee against bricking a phone. I just want to have a proper guide on how to update, so that I have the best odds possible
sachnadkarni said:
I know I asking basic noob questions about updating, but I was hoping for a bit more guidance actually...
1. Like what do I do with the I927UCLJ3_I927ATTLJ3_ATT.zip file?? Do I unzip it, or just copy it the phone memory and reboot into Odin??
2. The other thing is I started the EFS app on my PC and connected my phone to it, but the IMEI and other numbers are just all 0s. So, I am thinking, I did something wrong there as well...
I am well aware that no one in the world can guarantee against bricking a phone. I just want to have a proper guide on how to update, so that I have the best odds possible
Click to expand...
Click to collapse
1. It seems you're trying to upgrade your Glide via Odin. Unzip the zip, get all the files, put them in Odin folder (NOT the SD card, Odin is a PC-based tool) in the forums to proceed.
EDIT: Google is man's best friend. This is the Odin guide I followed when just a week ago I'm still new to my Glide: http://androidromupdate.com/2012/11/10/i927uclj3-new-ics-4-0-4-for-samsung-sgh-i927-captivate-glide/
2. Your EFS may already be dead Or I don't know, never used that tool before.
Sent from Samsung Captivate Glide @ I927UCLJ3
Okay I'll still advice you use the efs tool to. Back up your efs foder,then put your phone in download mode, using Odin flash the stock ICS ROM when its through flash any of the recovery through Odin again then allow the phone to reboot. you can now flash any of the ROMs I prefer the lite ROM anyways.
Good luck.
Sent from my SGH-I927 using xda premium
So yeah I just purchased a Samsung Galaxy S4 (SGH-M919V) by Videotron which I then unlocked, sadly I had the surprise of not having access to LTE so I came here immediately in order to find a solution, which I sort of did but didn't work as well as people claimed it would. I downloaded T-Mobile's stock ROM (M919UVUAMDL_M919TMBAMDL_TMB ) and extracted it to get my modem.bin which I then put in a .tar to flash in Odin with no success, instead I go a Security Check Fail error. I've then did some Google search which brought me to a few threads here and there with other people with similar issues but no actual clear explanation on how to go through this, any idea or optimal solution for this? It would be greatly appreciated.
Regards,
Jon
bump
After further research, I came across a few information which draws me to a different issue that could probably be causing the rest.
Apparently Odin has to read my phone and show a yellow box to say that it's actually working and ready to go? I already had the latest Samsung USB Driver for Mobile Phones and USB Debugging Mode enabled but I still do not get that said yellow box and it keeps giving me Auth Fail errors with literally ANYTHING I flash on my phone whether its a Custom Recovery, a Modem or even a mere input in Android Terminal Emulator, it's as if my phone was completely blocked from any type of outside source for whatever reason, never had this problem before. Anything that I could be missing?
So I managed to install a custom recovery and rooted it, so basically, the issue isn't Odin, it's a modem compatibility issue, my current modem is M919VVLUAMG1 which is from Videotron and doesn't support LTE, and on this exact website people said that it was possible to flash a modem.bin from T-Mobile's firmware in order to be able to get my LTE back but this leaves me with an Auth Fail error all the time. I'm really desperate here and the lack of support is saddening.
The temporary solution that I found is simply installing the latest T-Mobile Cyanogen Mod on my device and I got my LTE back but that isn't what I am looking for, so until I find a more solid solution I'll stick to this.
Bibiquadium said:
The temporary solution that I found is simply installing the latest T-Mobile Cyanogen Mod on my device and I got my LTE back but that isn't what I am looking for, so until I find a more solid solution I'll stick to this.
Click to expand...
Click to collapse
Is that 10.1 or 10.2 CM? You got LTE with calls to work with that?
10.2 RC2, set your APN to the proper LTE one, it'll show you 4G but in reality its LTE, its written in the CyanogenMod's FAQs and I also did a speed test which got me 45 Mbps DL and 25 Mbps UL
About 1 and a half months ago I flashed a Rom, as I had done many times before, and expected to have little to no problems with it. Man was I wrong. I was unaware that I had flashed a T-Mobile modem with it by mistake. I had done 3-4 backups in TWRP but they all must be too old to help or something. I have read that any Canadian SGH-T889v Note 2's, which is what I have, that flash the T-Mobile modem can not revert back to the Wind Mobile modem. If I am wrong can someone with more experiance with this issue, please, correct me and guide me in the right direction to repair it. I have bought a Z3X box to repair my imei but over the last 7 days I have been unable to have my Note 2 even be recognize by it. I am assuming that something has been damaged in the usb communication setup. And yes I have reconfigured the settings in the hidden menus just as the instructions laid out. The baseband appears to be locked to the T-Mobile version "T889UVUCMK7". I am at the android version 4.4.2, and my bootloader is at version T889VVLUDNE7, which is also the number for my PDA Version. I have read that a JTag may be the way to go to recover the full functionality of my Note 2. If this is correct can someone recommend a good one.
Thanks to everyone who shares their experience.
If you end up with JTAG, mobiletechvideos.com is a reputable one. I doubt you will get far without something akin to JTAG. YMMV.
Will reflashing a stock, or stock w/root ROM, recover MEID & Sprint Network settings?
I installed TWRP and rooted with Chainfire SuperSU on my Sprint KOT49H.L900VPUCOH3. I have lost the ability to connect to the network, but wifi and bluetooth still work.
I was considering one approach at fixing the issue that is here (which has a much more specific description of what I'm dealing with): http://forum.xda-developers.com/note-2-sprint/help/finding-twrp-efs-backup-sprint-samsung-t3281675. In the meantime I am still digging for a solution as I am without a phone until this is resolved. Somewhere along the way I skimmed past something that said that the phone's "identity" is now not always stored in the EFS partition.
So now my question is, will a stock ROM restore my connectivity to the Sprint network and will my phone's "identity amnesia" be corrected, or would I just have a "stock" phone that won't connect that I can get swapped with Sprint as a tech problem or Asurion as a damaged unit. I am not under warranty or contract, and not ready to commit to a lease on a newer Note model especially since I want to be able to make modifications.
I would appreciate any and all assistance. Part of me wants to just go the try, try again route, and the part of me that understands Murphy's Law wants me to be patient and not do anything else until I know exactly what I'm doing first. We may call it a brick after we've toasted the damn things, but they don't make good paperweights!