ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?
Naruto101 said:
ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?
Click to expand...
Click to collapse
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.
Bibz0r said:
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.
Click to expand...
Click to collapse
Thanks for help bro. I took a screen shot of my info. I'm not sure why it shows bmc when I downloaded the rwc files. And is the product code correct?, also I never seen the code for csc modem before. Is it not suppose to match baseband, pda, bootloader
Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.
Bibz0r said:
Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.
Click to expand...
Click to collapse
Thanks for all the help man, did the sim thing and it just loaded me into twrp and i didnt see an option so I changed it via the app. Same thing still got the 4G and bell bloat. But csc now says bmc/rwc
Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.
Bibz0r said:
Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.
Click to expand...
Click to collapse
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me
Naruto101 said:
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me
Click to expand...
Click to collapse
Don't worry, I'm not giving up on you
When you flashed back to stock ROM, did you do a full wipe before?
It is really important that you do a full wipe so that it doesn't leave any traces of your old installs.
Try to flash via Odin (while your phone is on Download Mode). Check the AP and the CSC box and input the stock file from SamMobile.
Let me know if it fixes it.
i9505 no signal connection or 3g/ 4g """"""SOLUTION FOUND TO ALL USERS!!!!!""""""
SOLUTION:
THIS IS FOR ALL WITH NO CONNECTION OR CONNECTION ISSUES, DUE TO UNLOCK OR NOT
before you begin, if your phone is not factory unlocked, you will lose your aftermarket unlock
donwload the rar file
extract content, install all
on the phone:
Type *#9090# Select option 2 (DM/DUN over HSIC)
and
Type *#7284# it will open a new menu or If *#7284# does nothing type
*#0808#
. In this new menu:
- Set USB to AP
- Set USB settings to DM+Modem+ADB
login to server for free... user : test pass: 123unlock
click advanced, read nvm to do backup, now select write, search for i9505 repair file, and proceed
after 3 min phone will reboot, you will not have network connection!
INSTALL your firmware from sammobile, let it finish... let the phone power on, and when reboot is complete, power off, enter recovery mode and format your phone to factory specs (down volume+home button+power on)
your done, enjoy!
https://mega.co.nz/#!PkY0TT7J!7IlNM8WQ6NJ0q-R8joT8hYTivll070-LHLq94wPoSWE
Your digging around has misled you. The GT-I9505 has 2100MHz support for 3g, as noted here, here, and here. It also has 2100MHz support for LTE. So something else is causing your issue. Are you certain your phone isn't in fact getting an LTE signal instead of 3G?
monteiro-ribas said:
So in my country all service providers work with 3g at 2100 frequency, why does my s4 doesn't connect to 3g?
Well... sadly after digging around i found out that the phone doesn't support 2100 frequency.
It's the official firmware for this country, was bought in this country but only gets 2g and 4g
any way to solve this mess? most of the data signal comes from 3g signal, if i'm inside of a building i only have gsm data :crying:
Click to expand...
Click to collapse
Dial *#1234# and tell me what appears
so.... I9505XXUGNJ8/
csc I9505YXXGNK1
i flashed a new firware from sammobile
so... as i search for 3g, only show vodafone, not the network that i need, the phone is locked to NOS. Also should show MEO 3g, and doesn't.
Strephon Alkhalikoi impossible to make that mistake, inside any building with another s4 i get 3g fine
Inside the buildings there is no 4g cover, i really need the 3g
Based upon the information you've provided, you're on the Baltic Black Edition firmware (CSC SEB). The firmware here though doesn't appear to be the problem. The problem is that you need to clear up some confusion here. You're saying you can't get LTE, are using unbranded firmware, yet your phone is locked to a carrier.
In an attempt to clear up things, please provide us with the missing information below, and confirm any already provided information is correct.
1. Model Number
Answer: GT-I9505, based upon the title of the thread.
2. Android Version, found by going to Settings > More > About device.
Answer: 4.4.2, based upon the firmware information.
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing and running Phone Info from the Play Store.
Answer: AP and CP I9505XXUGNJ8, CSC I9505YXXGNK1, which using the sammobile.com firmware checker links to the Baltic Black Edition firmware.
4. Service Provider
5. Country
6. Is the phone rooted? (Yes/No)
7. Is a custom ROM installed? (Yes/No, and the name of the ROM)
Answer: No, if you're able to pull up the firmware version via *#1234#.
You seem extremely knowledgable on this subject, would you mind if i picked your brain ???? Ive been having a similar problem:
http://forum.xda-developers.com/showthread.php?p=57996223
I think all the info you requested is there, hope a fresh pair of eyes will come up with something.
Update: currently on lollipop 5.0 cm_12_20150111_optimized_jflte with no improvement
Thx for any help
Sent from my GT-I9505 using XDA Free mobile app
facts:
1- phone has network lock
2- i have lte and gsm data
3- i can´t get 3g data, calls or messages because the phone doesn't find 3g network (only vodafone but not Meo or Nos)
4- i flashed all available firmware for this country
by using *#1234#
AP: I9505XXUGNJ8
cp: I9505XXUGNJ8
csc I9505YXXGNK
1. Model Number
Answer: GT-I9505, based upon the title of the thread.
2. Android Version, found by going to Settings > More > About device.
Answer: 4.4.2, based upon the firmware information.
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing and running Phone Info from the Play Store.
Answer: AP and CP I9505XXUGNJ8, CSC I9505YXXGNK1, which using the sammobile.com firmware checker links to the Baltic Black Edition firmware.
4. Service Provider
NOS
5. Country
Portugal
6. Is the phone rooted? (Yes/No)
No
7. Is a custom ROM installed? (Yes/No, and the name of the ROM)
No
monteiro-ribas said:
facts:...........
Click to expand...
Click to collapse
NOS (formerly PT Multimedia, ZON Multimedia and ZON Optimus). You will have to flash the latest firmware for your locked device. Download, unzip and flash this firmware via ODIN: HERE.
thanks but as i said before, i've tried many stock firmware, including that... that was te first one because i also thought that was something related to simlock
i will send the phone to warranty, or try at least
@Joku1981: If I didn't have to work today I would have told him the same thing.
@monteiro-ribas: If you intend on having the phone swapped out, you might want to flash the correct firmware that Joku1981 provided the link to before sending the phone in. I do hope you let us know if you get your issue resolved and whether it actually was the phone or, alternatively, the service.
pzyfocker said:
You seem extremely knowledgable on this subject, would you mind if i picked your brain ???? Ive been having a similar problem:
http://forum.xda-developers.com/showthread.php?p=57996223
Click to expand...
Click to collapse
@pzyfocker: Post your information in this thread, rather than the Modem thread. It will be easier to follow.
Please post the following information:
1. Model number
2. Android Version, found by going to Settings > More > About device.
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing Phone Info from the Play Store and running it.
4. Service Provider
5. Country
6. Is the phone rooted? (Yes/No)
7. Is a custom ROM installed? (Yes/No, and the name of the ROM)
Can do
1. Model number: Samsung Galaxy S4 GT-I9505 lte
2. Android Version, found by going to Settings > More > About device: At this exact moment flashing google-play-edition-rom-samsung-galaxy-s4-i9500-i9505-i9505g-i9506-android-5-0-1-lollipop
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing Phone Info from the Play Store and running it: Just finished flashing I9505XXUGNG8_I9505YXXGNH2_BGL and the phone automounted multi csc to SEE
4. Service Provider: Telcel
5. Country: Mexico
6. Is the phone rooted? (Yes/No): YES
7. Is a custom ROM installed? (Yes/No, and the name of the ROM): google-play-edition-rom-samsung-galaxy-s4-i9500-i9505-i9505g-i9506-android-5-0-1-lollipop although stuck on boot LOL
My original post in modems:
Ok guys, my kingdom for a solution, please !!!
Here's the deal, I have a samsung galaxy S4 GT-I9505 bought in hong kong, worked flawlessly for over a year on Telcel Mexico network, took a trip overseas to France bought a sim put it in the phone, worked great !!!!, came home put in my original sim and since then my S4 has been unable to maintain a stable 3g connection, usually connects for a under a minute and reverts back to edge. I've tried many different things recommended on this and other forums:
1.- removing/replacing sim card
2.- removing/replacing battery for over 4 hrs
3.- tried different sim cards from different carriers with same result
4.- wipe and clean install with different firmwares
5.- installed cyanogenmod latest
6.- under network modes, tried selecting every combination of lte, 3g, 2g, automatic network registration and selecting my preferred network.
7.- tried flashing over 30 different modems
8.- flashed latest firmware from sammobile specific to my phone (I9505ZHUFNL1_I9505ZZHFNL1_TGY)
9.- took it to a "technician" and he managed to return my phone in the exact same condition with the exception that now the wifi didnt work (i managed to fix this on my own)
10.- installed advanced signal status from play store which gave acces to other goodies such as selecting radio band between automatic, europe and usa, tried everyone of them with no solution.
Tried to be as thorough as possible, hope someone out there has a solution. I thank you all for your time and experience. Happy Holidays !!!!! I hope I am posting in the correct area, i searched and found this is the place where my problem seems to be discussed
P.D. Since im flashing GPE right now the screenshots no longer reflect what im on but I do have a nandroid back up of this rom and I am about to restore it.
Hope I was thorough, thanks for any help
solution found, see OP 1
monteiro-ribas said:
solution found, see OP 1
Click to expand...
Click to collapse
Hi mate,
Thanks for sharing , where did you find this information , i would like to read more about it.
MAX 404 said:
Hi mate,
Thanks for sharing , where did you find this information , i would like to read more about it.
Click to expand...
Click to collapse
i strugled 5 days with my phone, i did know that the problem was the nvm, and i found a free way to flash it, sammobile forum user 123unlock, owner of the program
monteiro-ribas said:
i strugled 5 days with my phone, i did know that the problem was the nvm, and i found a free way to flash it, sammobile forum user 123unlock, owner of the program
Click to expand...
Click to collapse
Thanks mate !!
Confused
monteiro-ribas said:
So in my country all service providers work with 3g at 2100 frequency, why does my s4 doesn't connect to 3g?
Well... sadly after digging around i found out that the phone doesn't support 2100 frequency.
It's the official firmware for this country, was bought in this country but only gets 2g and 4g
any way to solve this mess? most of the data signal comes from 3g signal, if i'm inside of a building i only have gsm data :crying:
SOLUTION:
THIS IS FOR ALL WITH NO CONNECTION OR CONNECTION ISSUES, DUE TO UNLOCK OR NOT
before you begin, if your phone is not factory unlocked, you will lose your aftermarket unlock
donwload the rar file
extract content, install all
on the phone:
Type *#9090# Select option 2 (DM/DUN over HSIC)
and
Type *#7284# it will open a new menu or If *#7284# does nothing type
*#0808#
. In this new menu:
- Set USB to AP
- Set USB settings to DM+Modem+ADB
login to server for free... user : test pass: 123unlock
click advanced, read nvm to do backup, now select write, search for i9505 repair file, and proceed
after 3 min phone will reboot, you will not have network connection!
INSTALL your firmware from sammobile, let it finish... let the phone power on, and when reboot is complete, power off, enter recovery mode and format your phone to factory specs (down volume+home button+power on)
your done, enjoy!
https://mega.co.nz/#!Oso1QZBT!E8V3LnYUimOqHCTMIcI0WMbWD2TnFUAB3ViotX_B_6M
Click to expand...
Click to collapse
Hi, thx for this, need a little help, im on stock rom, used the dial pad, set ap to your specs, I open the program in the zip file and cant find an advanced button, and hence cant continue, do i need to root the phone with this app and then an advanced button will appear ????
Managed to download srs tool from another link, logged in to server and currently trying this out, will update once finished
So far so good
pzyfocker said:
Hi, thx for this, need a little help, im on stock rom, used the dial pad, set ap to your specs, I open the program in the zip file and cant find an advanced button, and hence cant continue, do i need to root the phone with this app and then an advanced button will appear ????
Managed to download srs tool from another link, logged in to server and currently trying this out, will update once finished
Click to expand...
Click to collapse
Downloaded SRS tool from another link which finally gave me access to Samsung Remote Unlock Client, followed the steps in the guide, used the file provided in this guide and everything seems to be working for now, gonna test for a couple of days and will update.
I have attached the files I successfully used. Great many thanks to the OP and to the 123unlock team, had this problem for over a month and fingers crossed this appears to have solved it. THANKS
it worked
Thank you all. This solved the no 3g problem on my i9505
Iammykhael said:
Thank you all. This solved the no 3g problem on my i9505
Click to expand...
Click to collapse
can you please tell me the procedure step by step . i am new to do this
attiqurrehman said:
can you please tell me the procedure step by step . i am new to do this
Click to expand...
Click to collapse
Hello, i need the steps to. the link is broken.
By
I had been looking at this phone for a while on ebay and despite well... ebay... I had temporary lapse of good judgement and maybe a bit of alcohol and pulled the trigger.
I got the phone thinking it was a SM-N910F, everything I'd read said it would work on US AT&T sans some bands for LTE.
The phone came and it was in good condition. The box and the serial label behind the battery all say SM-N910F.
I turned the phone on, it has a beautiful screen, everything seems to work fine, works with wifi no problems, so far so good.
I turned it off, popped in my ATT SIM and turned back on and, uh oh, got an invalid SIM error.
Ok so next step, I go to the ATT store, they check the IMEI and confirm that yes it will work on their network and they give me a new SIM for good measure. Their new SIM still shows invalid in the phone and the sales guy is confused but then I tell him I got the phone off ebay and he gives me a look of pity. No problem though I wanted the international phone so I could learn about flashing ROMs and such without leaving me with a non-working brick and no communications device.
So I read through XDA posts and various tutorials over the web and try to find out why it's not accepting my SIM.
I flash TWRP, and root the phone, that worked fine.
Then I decide that maybe upgrading the firmware to Lollipop and flashing a new ROM might fix the problem. I go to Sammobile, download N910FXXU1BOB4_N910FOXA1BOB4_DBT because that seemed like a good one that would work. Then try flashing it via ODIN.
ODIN Fails, SECURE_CHECK_FAIL : aboot. Some more reading later I find out that usually happens because you're trying to flash the wrong thing.
So I dig further. I can still get into the stock kitkat software on the phone so I download *Samsung* Phone Info and check out what I've currently got on the phone, but now I'm totally confused because I don't know what to make of it and this is where I need some help.
I've got screenshots but due to being new I can't post a link, I can email them if they'll help.
Settings > Device Info shows SM-N910F with baseband of N910FXXU1ANK4... that looks right
but then I fire up Phone Info and it shows a phone model of SM-N910P which would be a Sprint CDMA phone? and a country CSC of CHN?
so this phone is truly international
European phone, Chinese CSC, with USA Sprint firmware?
Where do I even begin, can anyone suggest what I can do to untangle the mess?
Have you check the box "OEM unlocking" in the developer options menu? This allowed me to use Odin the first time on my tmobile note 4.
If you don't have a developer options menu in your settings, go to about device and press build number 7 times until it tells you you are now a developer.
try a European version BTU from sam i have the same model SM-N910F root is an issue i'm looking at.
as the SM-N910F is Euro i would use that firmware.
Hope it helps.
Hi Guys,
This is my first post here and also I am fairly new to android, so I apologize in advance if I violate a forum rule or ask an obvious silly question. Anyway,I Recently, I received a Samsung A5 2016 Dual Sim from my friend which did not boot up. Apparently he had installed an app which caused this situation. Then he had tried to install multiple firmwares with Odin on it without success. Anyway, I received the phone and first strange thing that I found was that product name in download mode was SM-A5108 which was different from A510FD which was on the phones box. This probably was the main reason behind not being able to flash any A510FD firmware on phone. So I flashed a A5108 firmware on it booted up to android. But there was 4 issues there:
1- No baseband version was available.
2- No IMEI information for either of sim card slots and of course not detecting any of sim cards.
3- Very sensible lag and delay on loading apps and working with menus.
4- Also A5108 is apparently available for china region so menu was Chinese and other region specific apps was on it.
I found out the original firmware on it was A510FD so searched a little bit and found out it is possible to restore a backup from A510FD. I downloaded a backup file from internet and restored it using TWRP (Data, System, Boot). After restore, phone booted up with A510FD but once again with null IMEI and also lagging. Right now baseband version is available and device model on about section is A510FD. I know all radio related information is on EFS but I have no EFS backup right now and restoring EFS is not an option. Is there any way to fix IMEI issue now?
I can provide exact build number and any other information about phone and firmwares that I used in case it is required for better troubleshooting.
check you phone model by imei or serial from the box or from back of the phone, if someone messed up that phone is hard to be sure what model is
remosam said:
check you phone model by imei or serial from the box or from back of the phone, if someone messed up that phone is hard to be sure what model is
Click to expand...
Click to collapse
I forgot to mention there is no IMEI on phone's box or phone itself. But phone's model (A510FD)is printed on box. Also battery is non-removable so not able to check inside of phone for IMEI.
If there is no other option you could remove the back glass panel to see the IMEI number there is a sticker underneath it i replaced the screen of mine and i saw this sticker. You need to be carefull taking off the panel tho cuz you coul rip off the sticker if you're not careful.
Thank you for responding. Okay, Let's suppose I found out IMEI by opening phone's back panel. What is the next step? How could I use these information to recover IMEI to phone? Is there any chance that IMEI information is at EFS partition but due to wrong firmware upgrade it is not working?