lte problem - Galaxy S 4 Q&A, Help & Troubleshooting

I have galaxy S4 I9505 with stock ROM installed (4.4.2), the phone should support lte network in my country (1800/2600 frequency).
My network mode right now is LTE/WCDMA/GSM, after I followed a guide in the internet to add this option (with es file explorer).
When I have a 4G sign on the status bar, the network suddenly becomes very slow and I can't even open a search engine.
If I change the network mode into WCDMA/GSM, and the sign changes into H/H+, without leaving the current place, the speed increases dramatically.
I've tried to check it with my cellular company, but they claim that because I've bought the cellphone abroad, they can't help me.
I've also checked with my other friends which possess 4G devices and they do manage to enjoy high speeds on those areas.
What can be the problem?

Help
Any one??

What guide did you follow and what rom are you using?

Lennyz1988 said:
What guide did you follow and what rom are you using?
Click to expand...
Click to collapse
I can't find the link to the guide, but it was something like that: Open es file explorer-->enable root explorer-->find file called 'persist.radio.lteon'-->delete it-->restart the phone-->on network mode choose LTE/WCDMA/GSM.
About the ROM, I've downloaded it from Samsung software site and burned it with odin. It should be kitkat 4.4.2. That is the file's name:
I9505XXUFNB8_I9505OXAFNB8_I9505XXUFNB8_HOME.tar.md5

danielyag said:
I can't find the link to the guide, but it was something like that: Open es file explorer-->enable root explorer-->find file called 'persist.radio.lteon'-->delete it-->restart the phone-->on network mode choose LTE/WCDMA/GSM.
About the ROM, I've downloaded it from Samsung software site and burned it with odin. It should be kitkat 4.4.2. That is the file's name:
I9505XXUFNB8_I9505OXAFNB8_I9505XXUFNB8_HOME.tar.md5
Click to expand...
Click to collapse
If I search on that file, then the guides say to change a value in that file from "false" to "true". I don't think you should have deleted that file. That could be the source of you problem.
Just reflash the rom you mention true Odin and try to change to value.

Related

How modify a qcn file to enable AWS band

Hi.
I come from another post looking for a solution to my dilemma (http://forum.xda-developers.com/galaxy-s5/help/switch-stock-rom-t2866861#post55236673), thanks to fffft member found that I can open the band 4 of my cell S5 using the QPST program, however I can not find a modified .qcn file that corresponds to my model (G900F).
What I have done is make a backup of my original .qcn (which understand not share because there goes my IMEI) and I need advice from someone who knows that is the parameter that should change to open the AWS band 4.
Much appreciate your help.
I see that nobody has answered, if it was not for lack of cooperation, or because no one has had this problem.
Continue researching and achieve get qcn file G900M, which is super, but not left so installed as well, the QPST program generates an error and does not let install, so proceeded to compare them to see how different they are, and actually they are very different in their hexadecimal setting.
The issue now is, I need someone to tell me what are the parameter I have to modify my original qcn (my G900F) to enable AWS band 4.
Thank you for your help.
..
Hello again fffft.
I will try to explain everything in the best way. I can not send the file qcn G900M, because I have understood that within the IMEI can be identified, and the first thing I asked the person I give it to me was that change could not deliver it to anyone.
Now step by step to do was the following (taken from this forum http://forum.xda-developers.com/showthread.php?t=2291589 ):
Install phoneutil.apk in my phone.
Install QPST 2.7 build 323.
Choose the usb connection “RNDIS + DM + MODEM” from the menu that comes by typing *#0808#.
On the Ports tab of the program QSPT set the COM port corresponding to the cell (seeing that port recognizes the cell through Device Manager).
Choose “Start Clients” and choose “SOFTWARE DOWNLOAD”.
Hit the “Restore” tab, set port to COM number, choose the QCN file, and start.
Attached two images, one in which it is seen that the process is running smoothly, and a second in which shows the error.
With regard to your question about the RMNET protocol, for I must say I have no idea regards, because as I said I am still a newbie.
Finally and with respect to qcn file G900T me would be very very difficult to get the file G900M was relatively easy (not as easy lol) but because here in my country is the model that is sold, but the model does not get G900T no way.
I remain attentive to your suggestions, and thanks again for the help.
..
I thought S5 supports AWS band as well as other bands? I bought S5 from Rogers and use it with Wind mobile (Canada).
..
Hi.
Well, with my answer are attached to the two qcn files, not if it's okay to post them because I do not know which is the information that I'm giving, but I'll trust you fffft.
Review the entries with IMEI and clear, making this process and I thought this would be a very good explanation of why not to overwrite the original file leaves the cell, because the second IMEI not for the phone, but even if this were true, no understand how in the above forum they spread a qcn file for S4 that everyone could use.
Anyway, I hope that with this we can advance the issue to see if I can get out of this mess.
Thanks again.
..
Ok fffft, I found the parameter you say, but now my question is, as I edit the file qcn? I need some special program?
Loperaco said:
Ok fffft, I found the parameter you say, but now my question is, as I edit the file qcn? I need some special program?
Click to expand...
Click to collapse
Well, download the program XVI32 to edit the hexadecimal, apparently was successful but eventually the program generated the same mistake I had already seen, indicating "Could not reset the phone. COmmunication Errors Occurred".
Will you help me?
..
Hi there.
I have an interesting fact to share, because I could not properly complete the process to overwrite the qcn file then started to review the QPST program and its functions, among these I found the display content on qcn files through this for any entries who had been unable to write and determine that it was possible to write the file so qcn "hot" (ie directly on the phone) Oh and surprise! when I saw that the code / parameter that indicated fffft if I had changed even though the restore process had not been successful.
Anyway achieved modify the parameter in question and probe the cell after this, but still not achieve even connect AWS band 4, so despite the success the result was a failure.
Knowing this now accept suggestions from all of you experts.
..
Got a little further, but the bands did not get enabled...
fffft said:
Docx? Shouldn't those be .qcn files?
Anyway, you should try encouraging someone to post a NV dump from their 900T for comparison. You can check the existing AWS threads to confirm, but as I recall to enable AWS on earlier Galaxy models, required editing NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06
So ostensibly you will want to make the same change on your 900F. Comparing your NV to a 900T would lend confidence to that presumption.
.
Click to expand...
Click to collapse
fffft, Laperaco,
I am pursuing the same Band change as described here and have an update of the things that I was able to discover:
1) I was able to use QPST and pull NV backup from my phone - see my JJ_ATT_S5_Bands_Tester_No_IMEI (IMEI removed in Line 550)
**Note that I was not able to restore any QCN back to my phone in either USB mode (and I think this is what Loperaco was talking about), but...
2) I was able to program my phone directly using RF NV Item Manager, but did not get desired results (see below):
- a) I changed 1877 NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06 and nothing changed - i.e. radio still worked and I was still getting EDGE (no HSPA+)
- b) I tried changing the next line 1878 NV_RF_HW_CONFIG_I from f6 to 2c, because I saw that in another QCN file I found online. That actually "killed" my radio altogether, at least until I changed it back to f6
- c) Upon further inspection of the SM-N900T file I found online (too big to upload here), I saw that there are quite a few differences, which leads me to believe that additional configurations must be made to take advantage of the HSPA+ bands.
!! Please !! If someone with T-Mobile SGS5 looking at this, could you pull your QCN, mask IMEI if you'd like and post it here for comparison.
Otherwise, fffft, do you have any other thoughts regarding the changes needed...?
Last note that files are posted as .qcn.txt, becuase forum does not allow posting of qcn file extensions. Just remove .txt and you will have original qcn.
Thanks,
JJ
fffft said:
Your reluctance to document what you have done in detail is unfortunate because it prevents us from confirming that you did as you summarized or possibly discern any errors along the way. Nor did you tell us how you concluded that the phone did not connect to AWS, whether the changes were persistent after a reboot or what the service mode showed for activity after using the diagnostic menu to lock the handset to AWS, et cetera.
Of particular value would be a before and after NV dump from your phone, alongside a 900T NV dump. Which would illustrate both the required changes and any progress made with the attempted write.
To reply to your question, two obvious possibilities are apparent
1. That you changed the parameter as you summarized and that was insufficient to effect the desired change. Which would mean that the required parameter is different for the S5 than preceding Galaxy models for some reason e.g. that a different parameter needs editing or that radio changes are needed as well, even though that was not the case for the S3 & S4.
2. That you made some inadvertent error in your procedure that you didn't discern. No one can look for possible errors in the absence of you providing a detailed, step by step description of what you did though.
.
Click to expand...
Click to collapse
Ok ok, let me see how I can solve this.
First of all is not reluctance, I tried to be clear in how I do things, but I'll try again:
1. I bought a model of cell G900F that has disabled the AWS band 4.
2. I tried using the QPST program to replace the qcn file with one that corresponded to a G900M model, since in this model if the band 4 is enabled, but the process to make it in the program generated the error "Could not reset the phone. Communication Errors Occurred ".
3. I do not know how or if the QPST program writes an error log, so I do not know where to look it can be sent. I explain how to install and run the program each button is a bit wasteful, but I followed the steps in this forum http://forum.xda-developers.com/showthread.php?t=2291589
4. After this, and having received suggestions from fffft, I tried modifying the original qcn file from my phone, because I thought that perhaps the problem was because they were different models and finally the phone would not allow me to put a qcn file of another model. The modifications I did was change the parameter NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06. This is done by the program XVI32 modifying the hexadecimal.
5. I tried again using the option to restore the qcn file in QPST program, but got the same error "Could not reset the phone. Communication Errors Occurred".
6. I assumed I had to think of something else so it was when using the RF NV Manager (included in the installation program QSPT) for locate the actual file contents qcn on my phone, and I realized that despite the error obtained in restoring the file using the QPST program the parameter indicated in paragraph 4 of this list if it had changed.
7. I proceeded to check the signal and actually still had no access to the 4G network, the most that is connected to the HSDPA + network.
8. I read the comments from fffft and now I'm writing this.
I hope I was clear in my problem and have made a good step by step.
Now the issue is that:
A. I do not know how to access the diagnostic menu that enables or disables the AWS band, so I do not understand fffft what you're talking about.
B. I agree that modify only the parameter in question is not sufficient, otherwise the matter would be solved.
C. It is possible that I made ​​a mistake as you point out, I finally am new to this, but still I explained my process so I am attentive to suggestions.
Thanks for the help.
JJ_Boja said:
fffft, Laperaco,
I am pursuing the same Band change as described here and have an update of the things that I was able to discover:
1) I was able to use QPST and pull NV backup from my phone - see my JJ_ATT_S5_Bands_Tester_No_IMEI (IMEI removed in Line 550)
**Note that I was not able to restore any QCN back to my phone in either USB mode (and I think this is what Loperaco was talking about), but...
2) I was able to program my phone directly using RF NV Item Manager, but did not get desired results (see below):
- a) I changed 1877 NV_RF_BC_CONFIG_l from 80 03 e8 04 to 80 03 e8 06 and nothing changed - i.e. radio still worked and I was still getting EDGE (no HSPA+)
- b) I tried changing the next line 1878 NV_RF_HW_CONFIG_I from f6 to 2c, because I saw that in another QCN file I found online. That actually "killed" my radio altogether, at least until I changed it back to f6
- c) Upon further inspection of the SM-N900T file I found online (too big to upload here), I saw that there are quite a few differences, which leads me to believe that additional configurations must be made to take advantage of the HSPA+ bands.
!! Please !! If someone with T-Mobile SGS5 looking at this, could you pull your QCN, mask IMEI if you'd like and post it here for comparison.
Otherwise, fffft, do you have any other thoughts regarding the changes needed...?
Last note that files are posted as .qcn.txt, becuase forum does not allow posting of qcn file extensions. Just remove .txt and you will have original qcn.
Thanks,
JJ
Click to expand...
Click to collapse
Hi JJ.
We are indeed talking about the same issue, however I see a difference and that is that despite not having the band 4 AWS enabled on your phone, this only gives you the edge band, however my phone without enabling the band 4 gives me HSDPA+, so my question, just out of curiosity, is what is the frequency at which your operator transmits the EDGE network?
Loperaco said:
5. I tried again using the option to restore the qcn file in QPST program, but got the same error "Could not reset the phone. Communication Errors Occurred".
6. I assumed I had to think of something else so it was when using the RF NV Manager (included in the installation program QSPT) for locate the actual file contents qcn on my phone, and I realized that despite the error obtained in restoring the file using the QPST program the parameter indicated in paragraph 4 of this list if it had changed.
Click to expand...
Click to collapse
Laperaco,
1) I was also unable to load qcn file from backup even without modifications, so...
2) I made modifications directly to the phone using RF NV Item Manager*
*Note from my post that changing line 1877 made no difference in connectivity for me.
3) This specific connection is below (although it naturally fluctuates):
Network Type: EDGE:2
GSM RSSI: -89db (63%) 12 asu
GSM Signal Strength: 13db (42%)
Preferred Network Type is LTE/GSM autio (PRL)*
*Non-GSM selections (WCDMA, LTE-only, etc) simply do not connect, so no HSPA+ for me
JJ
JJ_Boja said:
Laperaco,
1) I was also unable to load qcn file from backup even without modifications, so...
2) I made modifications directly to the phone using RF NV Item Manager*
*Note from my post that changing line 1877 made no difference in connectivity for me.
3) This specific connection is below (although it naturally fluctuates):
Network Type: EDGE:2
GSM RSSI: -89db (63%) 12 asu
GSM Signal Strength: 13db (42%)
Preferred Network Type is LTE/GSM autio (PRL)*
*Non-GSM selections (WCDMA, LTE-only, etc) simply do not connect, so no HSPA+ for me
JJ
Click to expand...
Click to collapse
Ok JJ, we are going through the same steps, we must wait for more help, I'll keep researching but I see that not many people have our problem.
I have a question is that with that code or through option that could see data that you send me.
Any information or change that has put it in the post.
..

930U Firmware for all phones!!! New Update

930U FIRMWARE​
Those of you on Sprint that have been locked into the Sprint only firmware now can go back to the beloved U firmware...or flash a carrier firmware of your choice. If you are still on b4, I would stay, but if not, now is the chance to install the U firmware.
Check your current bootloader version. You may not be able to odin carrier firmware after install the U firmware.
I'll put the files in this Google Drive folder
1. Download Odin3_v3.13.1_3B_PatcheD.zip (Check Odin Folder)
2. Download SM-G930U_B.zip this is the newest U firmware (Check G930U Firmware Folder)
SM-G930U_A.zip if you are on 'A' firmware and want to go back to carrier
SM-G930Ub9.zip if you are on '9' firmware and want to go back to carrier
3. Extract both zips
4. Open Odin
5. Place the files from SM-G930Uxxxxxxxx.zip into the correct BL, AP, CP, CSC blanks.
6. Put phone into download mode (power, home, volume down)
7. Connect phone to computer. Odin should now say phone is added. If not, install the Samsung phone drivers
8. Press START. This process will take about 10 minutes
9. Phone will reboot with new U firmware and Oreo installed.
HotSpot
1. download the QuickShortcutMaker app from the playstore.
2. Search for lte
3. Expand com.test.LTEfunctionality
4. Click on the new com.test.LTEfunctionality
5. Press Try
6. Scroll to LTE APN Settings
7. Click APN2 LTE internet (may be different outside of sprint)
8. Scroll to APN Type
9. Add " ,dun " The line should show read < default,mms,dun >
10. Click 3 dots to save
Random Questions/Answers:
1. Is it multi-csc? Yes, it should support any US carrier if your phone is carrier unlocked
2. Wifi Calling/VoLTE supported? Wifi Calling=yes; VoLTE=not sure, sprint doesn't support it.
3. Are XXX bands used with my carrier unlocked? All bands with major US carriers appear to be working. You can follow this guide for unlocking additional LTE bands to confirm or unlock more international bands. Change the dial code for the USB settings to ##3424#
________________________________________________________________________________
Old Stuff
The "U" Firmware will work on any G930 Galaxy S7 (basically, USA variants) and is the Samsung Galaxy Touchwiz OS without carrier bloat. There is Samsung Bloat, but some can be uninstalled or disabled with a program like Package Disabler Pro or just disable it under application manager.
This should not trip Knox and will allow you to flash back to your original stock firmware. Warranty should not void, but I'm not responsible for bricked devices, exploding batteries, crying babies, Earth crushing meteors. If you have a question, best to ask it first!
There is an OTA to PG9 after you install this firmware. Feel free to upgrade after you flash this!
Installation:
1. Download
Updato Firmware Website ​or​ Sammobile Firmware Website ​or​ PL2 Firmware Google Drive (post 365 for MD5)​
2. Extract files. May be best to download files over a wired connection!
3. Open ODIN and place the BL; AP; CP; CSC from the rar in the corresponding slots.
4. Place phone in download mode. Power + Vol Down + Home
5. Connect Phone to computer
6. Odin should recognize your phone. If not, you need to download and install the Samsung Driver Files
7. Press Start
8. It should flash the "U" Firmware.
____________________________________________________
Pit Mapping Error Fix
1. Download the Pit File Here
1a. You will have to down the Sprint PE1 firmware from Pit File Here or Pit File Here
The bootloader changed from v3 to v4 after the PGx update. If you are going to odin the latest firmware, you shouldn't have any issue. Going back to PGx to PCx/PEH will require this.
2. In Odin click the tab that says "Pit"
3. Odin will pull up a Warning dialogue. Click ok.
4. Click the long rectangular "Pit" button to select the pit file
5. Select the file that says "HEROQLTE_USA_SPR.pit" from the files you downloaded from my link.
6. With the pit file nw included, Add the AP, CP, and CSC files again and flash. (may need to reboot and go back into download mode)
7. Now odin the older 'U' firmware
____________________________________________
You cannot root this firmware with the Sprint model. Here are some apps that will give you some root/xposed features without them.
HotSpot
1. Download Shortcut Master Lite
2. Search for LTEfunctionality
3. Click on com.test.LTEfunctionality
4. Launch
5. Scroll down to LTE APN Setting
6. Add " ,dun " to APN2 LTE and EHRPD internet under APN type. That line should read default, mms, dun when you finish.
7. Native Hotspot should work. You may have to do this hack again if you update Profile.
Ad Blockers
None of these block ads on Youtube completely. Some will let you route through their servers to filter ads on Youtube via a VPN.
1. Adhell Uses Samsung Knox to block ads and trackers. Blocks most things on webpages and apps (no youtube), but saves a ton a battery since it doesn't require VPN. Also, it is FREE and well supported!
2. Disconnect Pro Similar to Adhell, but a paid app. Search the Galaxy App Store to buy it. Uses Samsung Knox too.
3. Ad Guard. Best I've used, but is a paid app for the good features.
4. AdClear. Some have had success with this, I've had mixed results.
5. BlockThis! Works well, but caused issues on some webpages.
Youtube Ads
This doesn't block ads, but it does silent and auto skip them. Cygery
Skip Tracks With Volume Keys
1. Frinky Music Controller Allows you to skip tracks with screen off.
2. Noyze Not sure if still being developed, but works. Let's you skip tracks by long pressing with screen off.
Voicemail Issue
I use Google Voice, so this worked for me. It is/was free to integrate your number with Google Voice...highly recommend if they still do it.
Install this apk for Sprint Visual Voicemail apk It will give you an error, but will take away the annoying voicemail notification. Then you can just hide the notification in the android settings and your problem will be solved. May work if you have regular voicemail, but probably not since it needs to write to system.
Doze Related
Remember to whitelist apps you want running in the background...like Pandora, Google Music, etc. I would leave them off at first and if it cuts off when the screen is off, you need to white list it.
For me, these both work best together and I saw a difference running both as opposed to either solely.
1. ForceDoze puts your phone into doze mode without the motion detectors and 30 minute wait. Great app! Does require you to install adb (adb installer) since you have to run a command to get it to run properly. Check Disable motion sensing and turn off while charging
2. Greenify The auto hibernation works great if we had root, but we don't. It works, but can be extremely annoying at times and can drain battery because it may continuously try to force stop/close an app you greenify. Plus, it will take a few seconds to re-unlock your phone immediately after you turn off the screen. However, I use it with force doze for the aggressive doze. I saw a difference in battery life by using them both.
Other Tips
Besides the obvious of gmail/facebook/whatspp/twitter/snapchat syncing
1. Turn off wi-fi scanning
2. Back up my data for Samsung and Google under back up and reset
3. Turn off some features under advanced features in settings...for example, palm swipe to capture if you never use it
4. Location History under Location
5. Change locating method...I leave mine on GPS, wi-fi, mobile, but some people want more battery life and turn it off.
6. Turn on developer options and change animations to 0.5
7. Turn off Always on Display under settings > display. I like it, so I leave it on...but takes about 2% an hour
Old stuff
Has anyone tried the 930U firmware for our Sprint phones (930P)? They seem to have success with it (935U) over at the Sprint S7 Edge forums.
On the Edge forums, they said you can root, but it messes with LTE/call abilities. However, it removes all Sprint bloatware and apparently allows for hotspot tethering.
According to the Edge forums, it is the universal firmware, so it should work on any qualcomm chipset phone. The firmware is for the Galaxy S7 Special Edition ( Link to Sprint site about it )
Anyway, here is the thread on the AT&T forum about it if you are interested. Didn't see a thread or info about here, so I was just wondering.
1. Download
https://drive.google.com/file/d/0B17W2gA_VROXV0M1NTZSaUxaajQ/view​or​https://mega.nz/#!Gp9gXYKY!CQV9FcZTiW7wf9vUeEtUck-5mF_QOQFy-vbcjRrd5kA​
http://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
AdHell AdBlocker
1. Download two apk files from this folder
2. You need a Samsung Key
Sign in here with your Samsung account.
Go here to view your keys or generate new ones.
Click on Generate License Key. (Left corner)
Go to Samsung SDK section.
Select Development license key
Give the key a name in Add a key alias
Press Generate license key
Copy the key. The key should start with KLM
I copied it into Google Keep ​3. Install and Open the other apk that isn't adh3v3.1.1.236_79a11719.apk
4. Select an APK File
5. Go to the file name adh3v3.1.1.236_79a11719.apk
6. Click Common Edit
7. Change the package name to com.XXXXXXXX.XXXXXXXXX replace the Xs with random letter/numbers. remember the first set has 8 replacements and the second set has 9.
8. Press Save
10. Click Install
11. Give permissions if asked
12. Click Enable Admin inside Adhell
13. For the code, put in the KLM key you just created
14. Accept the Samsung terms
15. Adhell should be working
Credit for links above (let me know if I left you out):
Ae3NerdGod
Tom Barrasso
Snoop05
cygery
Suyash Srijan
epicman_1200
turbozapekanka
jrkruse
micallan_17
If you have a good tip or trick, let me know and I'll add it to the OP for easy reference.
I flashed it on my G930P and its working very well. Samsung pay is also working. The only problem is that it didn't get the latest security update. Hope this helps.
After flashing...does data, calling, texting and all that work fine?
Euronymous88 said:
After flashing...does data, calling, texting and all that work fine?
Click to expand...
Click to collapse
Ive had this issue..i tried to find a way around it but nope, as soon as i flash the root file my phone reboots and all services r gone
shooterlgk said:
Ive had this issue..i tried to find a way around it but nope, as soon as i flash the root file my phone reboots and all services r gone
Click to expand...
Click to collapse
Yeah, that's a known issue about rooting the U firmware
What if I just flash the U firmware and don't root? Would data and all that work then?
Euronymous88 said:
What if I just flash the U firmware and don't root? Would data and all that work then?
Click to expand...
Click to collapse
Yea it works that way..but once u root it, it breaks everything
shooterlgk said:
Yea it works that way..but once u root it, it breaks everything
Click to expand...
Click to collapse
Can you Edit APN setting so the Hotspot will work or APN setting still Grey, I'm talking about flashing the Rom without Root, can I edit APN Setting?
---------- Post added at 10:23 AM ---------- Previous post was at 10:23 AM ----------
lvpre said:
Has anyone tried the 930U firmware for our Sprint phones (930P)? They seem to have success with it (935U) over at the Sprint S7 Edge forums.
On the Edge forums, they said you can root, but it messes with LTE/call abilities. However, it removes all Sprint bloatware and apparently allows for hotspot tethering.
According to the Edge forums, it is the universal firmware, so it should work on any qualcomm chipset phone. The firmware is for the Galaxy S7 Special Edition ( Link to Sprint site about it )
Anyway, here is the thread on the AT&T forum about it if you are interested. Didn't see a thread or info about here, so I was just wondering.
http://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
Click to expand...
Click to collapse
Can you Edit APN setting so the Hotspot will work or APN setting still Grey, I'm talking about flashing the Rom without Root, can I edit APN Setting?
Not without root on this firmware. Some have said Hotspot works without issue, but I had to use the hurry and turn it on at boot technique.
Sent from my SM-G930P using Tapatalk
Mine is unlocked atm, running on koodo network. I was wondering if I try it and if I want to go back for some reason, how do you do that and will I loose my unlock?
lvpre said:
Not without root on this firmware. Some have said Hotspot works without issue, but I had to use the hurry and turn it on at boot technique.
Sent from my SM-G930P using Tapatalk
Click to expand...
Click to collapse
how do you do it man (the hurry and turn it on at boot technique), I tried it many times, it's not working, any useful tips to make it work for me, by the way I'm on (G930PVPU2APE1), I really like the Hotspot
ahmadxbox360 said:
how do you do it man (the hurry and turn it on at boot technique), I tried it many times, it's not working, any useful tips to make it work for me, by the way I'm on (G930PVPU2APE1), I really like the Hotspot
Click to expand...
Click to collapse
That technique won't work with that version. I only got it to work on PE1 by rooting. I read that you can use PDAnet via the USB tether option.
lvpre said:
That technique won't work with that version. I only got it to work on PE1 by rooting. I read that you can use PDAnet via the USB tether option.
Click to expand...
Click to collapse
Which version will it work, I can downgrade to an version except for AB5
Mine had the APN settings grayed out under Settings but I found another way to edit them so I could do the hotspot trick.
1. Download Shortcut Master Lite
2. Look for com.test.LTEfunctionality
3. Scroll down to LTE APN Setting
4. You can now edit your APN settings
colin0998 said:
Mine had the APN settings grayed out under Settings but I found another way to edit them so I could do the hotspot trick.
1. Download Shortcut Master Lite
2. Look for com.test.LTEfunctionality
3. Scroll down to LTE APN Setting
4. You can now edit your APN settings
Click to expand...
Click to collapse
Awesome. And your stock, not rooted. And it let you turn it on and off without issue
Sent from my SM-G930P using Tapatalk
lvpre said:
Awesome. And your stock, not rooted. And it let you turn it on and off without issue
Sent from my SM-G930P using Tapatalk
Click to expand...
Click to collapse
Yes. Running it Stock without root. Ran into the same problem like everyone else with root. Currently looking around trying ways to get it to work.
colin0998 said:
Mine had the APN settings grayed out under Settings but I found another way to edit them so I could do the hotspot trick.
1. Download Shortcut Master Lite
2. Look for com.test.LTEfunctionality
3. Scroll down to LTE APN Setting
4. You can now edit your APN settings
Click to expand...
Click to collapse
I downloaded the app and searched but didn't find what you said to look for. I even used the search function and got no results.
Euronymous88 said:
I downloaded the app and searched but didn't find what you said to look for. I even used the search function and got no results.
Click to expand...
Click to collapse
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Weird. That's all I searched for in it and was able to. You must be on the G930U or G935U firmware for it to work.
colin0998 said:
Weird. That's all I searched for in it and was able to. You must be on the G930U or G935U firmware for it to work.
Click to expand...
Click to collapse
you must be Rooted to Flash G930U or G935U, Right?
I just want the hotspot to work without Root
ahmadxbox360 said:
you must be Rooted to Flash G930U or G935U, Right?
I just want the hotspot to work without Root
Click to expand...
Click to collapse
No. You flash the G930U firmware in Odin.
follow the steps here to install it.

Yotaphone 2 signal boost trick/unlock band ?

Helo from Slovenia,
perhaps i found a way to boost signal or unlock bands in Yotaphone 2.
Go to android secret menu *#*#4636#*#*
Then go information about phone menu and scroll down.
There is a option for choosing priority band, normaly its choosen LTE/WCDMA
Klick on this and switch the options to TD-SCDMA,GSM/WCDMA and LTE or TD-SCDMA,LTE,CDMA,EvDo GSM, WCDMA
Now watch the signal boosting
I checked same locations driving yesterday and today with car. Where i yesterday got no signal, today i got fully edge signal.
And no signal outage today no matter the location
Check this option and let me know if it works there too. I tried on Android 4.4.3 and 5 work both.
I put the first one, but how can I see the difference? the problems was not getting the 2G signal at all if I force in 2G. But if I force it now, your suggested settings will change.
What is the difference between TD-SCDMA,GSM/WCDMA and LTE or TD-SCDMA,LTE,CDMA,EvDo GSM, WCDMA?
May I ask you which mobile operator you have and which radio & firmware you use on your YotaPhone2?
TheArt. said:
I put the first one, but how can I see the difference? the problems was not getting the 2G signal at all if I force in 2G. But if I force it now, your suggested settings will change.
What is the difference between TD-SCDMA,GSM/WCDMA and LTE or TD-SCDMA,LTE,CDMA,EvDo GSM, WCDMA?
May I ask you which mobile operator you have and which radio & firmware you use on your YotaPhone2?
Click to expand...
Click to collapse
you have to go to spots/locations where you got no signal before and try it now ?
Setting your phone to the wrong settings so it fails over to 2G will no doubt improve your signal strength no end. But personally I would prefer to get fast internet on the move, and leave your radio settings well alone!
There are apps you can get that are called 'signal boosters' they just work by turning off your phone radio and then on again. If you were not connected to a nearby cell but one farther away this will 'boost your signal' ...
You're probably experiencing either or both of these effects. as well as the 4G effect - which is that if you have a local 4G aerial all the cellphones that can do so will be connecting to that, leaving you free to connect to an empty 3G cell instead with lots of bandwidth. Maybe not what you had planned to do, but actually improving your performance by setting the wrong settings
Did anyone already find the secret USB menu code to put the device into Modem mode? As the YotaPhone has a Qualcomm processor, this could be used to enable additional LTE bands, which really would help with reception like in [GUIDE] Add all GSM and LTE bands to your phone.
seems cool! We have to test
Crazyphil01 said:
Did anyone already find the secret USB menu code to put the device into Modem mode? As the YotaPhone has a Qualcomm processor, this could be used to enable additional LTE bands, which really would help with reception like in [GUIDE] Add all GSM and LTE bands to your phone.
Click to expand...
Click to collapse
Modem mode can setted by change buildprop sys.usb.config=diag.
Next read this.
w()$k said:
Modem mode can setted by change buildprop sys.usb.config=diag.
Next read this.
Click to expand...
Click to collapse
Ah, I haven't noticed that post, so we're making progress but no clear results yet :fingers-crossed:
here on XDA there's also this thread about unlocking frequencies: https://forum.xda-developers.com/yotaphone-one/help/unlocking-additional-radio-basebands-t3523000
TD-WCDMA won't work in spain. TD stands for Time Division and many countries work with FD (Frecuency Division)
Hi,
I am much interested in changing the LTE of YD206, has anyone suceed yet on this phone? A tuto would be really awesome! As I am new to android it would definitly help!
@TheArt. could you eventually translate the post please? My russian is far not good enought and google translated does not make much sens...! Did you succeed modifying the bands?
UNLOCK LTE BAND B20 - 800Mhz and B38
I will translate here the work of three 4pda users who must be thanked a lot for their work! unkernet, ssho and BoyNG. Thank also to mamant1988 who put everything together.
The original 4pda guide can be found here (in russian): http://4pda.ru/forum/index.php?showtopic=797643&view=findpost&p=59716629
UNLOCK B20 LTE BAND ON YD206​
Starting point is a rooted YD206 with latest RU 134 firmware, TWRP and ADB-USB-debug enabled. Do this procedure carefully and write down all the modifications and default values. The changes are performed on NVRAM level, so flashing firmwares will not affect them. Flashing firmwares will, however, affect modified baseband, as any other "radio" part as usual.
Download here the .zip archive which contains what is needed for this guide, including some screenshots of how things should be displayed.
Download the modified baseband RU-CN here and put it into the internal memory of the phone: it will be flashed in the end.
Install QPST and QXDM Qualcomm programs on Windows, they are in the above archive.
Enable the installation of unsigned drivers in Windows (like this). This is needed to install drivers for the diagnostical port later on.
Download Terminal Emulator from Play Store.
In the Terminal, write the following to get root access:
Code:
su
then:
Code:
setprop sys.usb.config diag,adb
Connect the phone via USB to the PC, in the Device Manager it should pop up as "Android Device" or similar, without a specific driver.
Right click on it and perform these actions: update drivers, search on this computer, choose driver from already installed drivers, show all devices, next, install from disk, there point to the .inf file corresponding to your system (32bit -> x86, 64bit -> x64) found in \YotaLTE\Modified HTCDiagDriver\Win x64HtcUsbMdmV64.inf (for 64bit).
After installation, go to properties of this new driver HTC USB Modem and check the number of the port displayed there, COM3 or COM4, for example.
Lower the 38400 value which you find there, click OK.
Execute as an admin C:\Program Files (x86)\Qualcomm\QPST\bin\QPSTConfig.exe.
Choose the second section Ports, then "Add new port".
In the field Port put the one which was displayed in the modem section, COM3 for example.
In Port Label field write "Yota" or whatever, and then OK.
In the first section Active Phones the smartphone should be displayed.
KEEP QPSTConfig.exe PROGRAM OPENED.
Also, start C:\Program Files (x86)\Qualcomm\QXDM\Bin\QXDM.exe using admin privileges
Here, click Option, then Communications.
In the Target Port choose the same port as before, then OK.
Click View, New, Common, NV Browser. In the Category Filter choose LTE.
Choose 06828 LTE BC Config and then press "read".
Correct the number you see, for example 1099511627781 in 1099512152069 for B20 and click Write to save.
Close all the programs, and reboot the phone directly into TWRP (VOL UP + POWER), here find the update_S01_003_4240_RU1_M05_patched.zip baseband and flash it.
At this point it is advised to clean dalvik cache and cache with TWRP.
Done! Reboot.
If it is not working, reset everything by flashing stock baseband, putting back the values changed above and start again. It is not necessary to flash the modified RU-CN baseband, if with the CN one the phone is performing at 100%. I suggest to flash to see the differences. By the way, remember to unlock one band at a time.
To unlock B38 band (there is lack of information about YD206 already having it or not) the number is 1236951105541. For example, if the initial number found in LTE config was: 1236950581253, it means that the bands LTE B1/B3/B38/B41 were active. To verify by yourself download LTE Band Calculator.
Some attempts have been made also to unlock B7 band, but without success for now. It seems that the baseband crashes after a second when triying to connect to that LTE band. Further research needed!
After all the hassle I just went through to obtain a YD201 instead of a YD206 so I could have Band 20
Great news for YD206 owners anyway, thanks for sharing!
hippy dave said:
After all the hassle I just went through to obtain a YD201 instead of a YD206 so I could have Band 20
Great news for YD206 owners anyway, thanks for sharing!
Click to expand...
Click to collapse
Me too.
Tried drivers installation with a yd201 (just for take a look about the wifi issue) and they are not compatible.
I guess modifying the inf files would do the trick.
Hi, I try to unlock LTE band, but su command doesn't work in terminal .... it said su: not found.
velociraptor68 said:
Hi, I try to unlock LTE band, but su command doesn't work in terminal .... it said su: not found.
Click to expand...
Click to collapse
Do you have root? Do you give root permission to Terminal Emulator?
Just did the procedure, can't confirm if it's working on 800MHz B20 yet because I can't find a way to force it or even know if its available in my region from my Network, because I live in the city and they use mostly the 1800MHz, 2G Only works correctly and it seems that somehow it also solves the Proximity Sensor, I will give feedback at how it behaves tomorrow when I will be on the move, but until now everything seems well and smooth, Many Thanks for the persons that worked on the fix, I guess Yota should be hiring! And to @TheArt who translates all the good stuff!
band17
Hello,
Would it work to unlock band 17 At&t? Is that enough modify config 6828 number by calculator?
Hello,
I am from Bosnia and got Yotaphone 2 from China (YD206) and installed latest RU software 1.132, but I noticed that my phone only works in big cities. As soon as I leave for the countryside, there is no signal/service.
Is there another version of software I can try to upgrade to, to get these bands in the countryside as well, or the problem is with the limitation of phone's hardware?
Thanks!
Miroslav1999 said:
Hello,
I am from Bosnia and got Yotaphone 2 from China (YD206) and installed latest RU software 1.132, but I noticed that my phone only works in big cities. As soon as I leave for the countryside, there is no signal/service.
Is there another version of software I can try to upgrade to, to get these bands in the countryside as well, or the problem is with the limitation of phone's hardware?
Thanks!
Click to expand...
Click to collapse
Whats the coverage in your contry?
Maybe outside big cities there are not mobile connection in the frequency that yotaphone can support
borekon said:
Whats the coverage in your contry?
Maybe outside big cities there are not mobile connection in the frequency that yotaphone can support
Click to expand...
Click to collapse
GSM : 900 (E-GSM) 1800 (DCS)
UMTS: B1(2100) UMTS B8 (900 GSM)
That is what I found out from google. I am not sure what is the better way to find out what Yota covers and what is available here.
If someone knows please let me know.
If I perhaps flash the phone with EU software rather than RU which I currently have, would that unlock some bands?

[GUIDE] unlock APN settings on stock firmware

if you have a problematic firmware that won't allow you to edit your APN settings in the dialer hidden menu, this may be what you need.
first, the warnings:
1. THIS IS ONLY FOR SPRINT SAMSUNG PHONES RUNNING TOUCHWIZ ROMS!!! never attempt on any other carrier or manufacturer's device or alternate roms! it should most likely work on other Samsung Sprint devices with stock/touchwiz roms.
2. DEPENDING ON DEVICE, YOU ARE MOST LIKELY TO BE FORCED TO FACTORY RESET YOUR DEVICE IN THE PROCESS, which likely includes LOSS OF ALL DATA ON INTERNAL SD!! take all necessary precautions.
3. ROOT REQUIRED
4. you will STILL NEED your MSL number!!!
5. have a FULL backup in TWRP ready in case anything goes wrong. INCLUDE your EFS in the backup!!! again, INCLUDE YOUR EFS. make sure it's stored on EXTERNAL sd card. again, EXTERNAL SD CARD!!! or copy it to your PC if you don't have an external card.
here's the short but sweet guide.
1. download "Samsung Phone Info" from Google Play
2. swipe over to the CSC section.
here you should see:
Firmware's CSC Code
Active CSC Code
Available CSC Code
3. if Firmware's AND Active both say XAS, you should already be able to edit your APNs using your MSL number.
if Firmware and Active codes do not match, you have a dirty rom and I am unable to help you correct it, you'd best try a different stock based rom or 3rd party that allows it by default.
if Available CSC Codes does NOT include "XAS" then whoever modified the customized stock touchwiz rom you're using removed it and you'd best try a different stock based rom or 3rd party that allows it by default.
4. using any CSC editor, change "SPR" in ALL places it appears as only the 3 letters "SPR" to XAS
5. confirm changes and reboot. you will now most likely lose ALL personal data on your phone and should now be able to edit your APN using your MSL inside the dialer's hidden menu.
Sterist said:
if you have a problematic firmware that won't allow you to edit your APN settings in the dialer hidden menu, this may be what you need.
first, the warnings:
1. THIS IS ONLY FOR SPRINT SAMSUNG PHONES RUNNING TOUCHWIZ ROMS!!! never attempt on any other carrier or manufacturer's device or alternate roms! it should most likely work on other Samsung Sprint devices with stock/touchwiz roms.
2. DEPENDING ON DEVICE, YOU ARE MOST LIKELY TO BE FORCED TO FACTORY RESET YOUR DEVICE IN THE PROCESS, which likely includes LOSS OF ALL DATA ON INTERNAL SD!! take all necessary precautions.
3. ROOT REQUIRED
4. you will STILL NEED your MSL number!!!
5. have a FULL backup in TWRP ready in case anything goes wrong. INCLUDE your EFS in the backup!!! again, INCLUDE YOUR EFS. make sure it's stored on EXTERNAL sd card. again, EXTERNAL SD CARD!!! or copy it to your PC if you don't have an external card.
here's the short but sweet guide.
1. download "Samsung Phone Info" from Google Play
2. swipe over to the CSC section.
here you should see:
Firmware's CSC Code
Active CSC Code
Available CSC Code
3. if Firmware's AND Active both say XAS, you should already be able to edit your APNs using your MSL number.
if Firmware and Active codes do not match, you have a dirty rom and I am unable to help you correct it, you'd best try a different stock based rom or 3rd party that allows it by default.
if Available CSC Codes does NOT include "XAS" then whoever modified the customized stock touchwiz rom you're using removed it and you'd best try a different stock based rom or 3rd party that allows it by default.
4. using any CSC editor, change "SPR" in ALL places it appears as only the 3 letters "SPR" to XAS
5. confirm changes and reboot. you will now most likely lose ALL personal data on your phone and should now be able to edit your APN using your MSL inside the dialer's hidden menu.
Click to expand...
Click to collapse
Have you found a way to retrieve your MSL without calling sprint? I've tried all the tool apps in the play store and using a logcat within the ##3282# menu with no luck. Getprop ril.MSL yields nothing, not even a not found error.
I've tried calling sprint for my MSL but refuse to release it.. I'm not exactly on their "nice" list - they've even called to tell me I'm "using too much of my [UNLIMITED] data" many times so I don't expect much from them anymore..
Any help or direction would be greatly appreciated
try the Sprint chat -- through the website, NOT Facebook, and have a good reason ready as to why you need the MSL, other than for bypassing their security lol
Holy **** after searching high and low I have FINALLy found a way to get back editing my APNS for hotspot on my rooted Sprint Note 5! AND I keep Android Pay! Thanks so much!!
This works perfectly! Only thing is turn on hotspot option disappeared from settings. I can turn it on and off from the top bar if I swipe down. OR I can download a hotspot shortcut app and access it from that app.
Also I noticed my icons for LTE now say 4G and the bars are different too - more old school.
I noticed I changed EVERY SPR to XAS - do ALL of them NEED to be changed to enable APN editing? Can I switch back the ones that give me back hotspot option in settings and stock LTE & bars icons?
Sterist said:
if you have a problematic firmware that won't allow you to edit your APN settings in the dialer hidden menu, this may be what you need.
first, the warnings:
1. THIS IS ONLY FOR SPRINT SAMSUNG PHONES RUNNING TOUCHWIZ ROMS!!! never attempt on any other carrier or manufacturer's device or alternate roms! it should most likely work on other Samsung Sprint devices with stock/touchwiz roms.
2. DEPENDING ON DEVICE, YOU ARE MOST LIKELY TO BE FORCED TO FACTORY RESET YOUR DEVICE IN THE PROCESS, which likely includes LOSS OF ALL DATA ON INTERNAL SD!! take all necessary precautions.
3. ROOT REQUIRED
4. you will STILL NEED your MSL number!!!
5. have a FULL backup in TWRP ready in case anything goes wrong. INCLUDE your EFS in the backup!!! again, INCLUDE YOUR EFS. make sure it's stored on EXTERNAL sd card. again, EXTERNAL SD CARD!!! or copy it to your PC if you don't have an external card.
here's the short but sweet guide.
1. download "Samsung Phone Info" from Google Play
2. swipe over to the CSC section.
here you should see:
Firmware's CSC Code
Active CSC Code
Available CSC Code
3. if Firmware's AND Active both say XAS, you should already be able to edit your APNs using your MSL number.
if Firmware and Active codes do not match, you have a dirty rom and I am unable to help you correct it, you'd best try a different stock based rom or 3rd party that allows it by default.
if Available CSC Codes does NOT include "XAS" then whoever modified the customized stock touchwiz rom you're using removed it and you'd best try a different stock based rom or 3rd party that allows it by default.
4. using any CSC editor, change "SPR" in ALL places it appears as only the 3 letters "SPR" to XAS
5. confirm changes and reboot. you will now most likely lose ALL personal data on your phone and should now be able to edit your APN using your MSL inside the dialer's hidden menu.
Click to expand...
Click to collapse
elcidroyale said:
Holy **** after searching high and low I have FINALLy found a way to get back editing my APNS for hotspot on my rooted Sprint Note 5! AND I keep Android Pay! Thanks so much!!
This works perfectly! Only thing is turn on hotspot option disappeared from settings. I can turn it on and off from the top bar if I swipe down. OR I can download a hotspot shortcut app and access it from that app.
Also I noticed my icons for LTE now say 4G and the bars are different too - more old school.
I noticed I changed EVERY SPR to XAS - do ALL of them NEED to be changed to enable APN editing? Can I switch back the ones that give me back hotspot option in settings and stock LTE & bars icons?
Click to expand...
Click to collapse
this **might** be fixed by renaming (or deleting, if you're brave) the features.xml file, if I remember correctly, stored in system/csc/ or system/etc/ not sure honestly
features.xml.backup should do just fine.
if the rom doesn't boot afterwards or if the dragons catch all your apps on fire, go back to recovery and use TWRP's file manager to change it back
also, any xposed app (like wanam's) or other feature.xml adjusting apps (like GalaxyTools or Samsung Phone Info) can cause the problem to happen again.
the alternative / temporary / dirty-fix would be to create a shortcut to hotspot on your home screen:
1. download Activity Launcher from Google Play
2. launch and change recent activities to all activities
3. wait approximately 72 years for it to load
4. scroll to Settings and tap it
5. scroll to Hotspot and long-press it
6. tap create shortcut
7. never uninstall Activity Launcher -- instead just make it a hidden app (it's very small anyways)
I can just longpress hotspot toggle in slide down drawer from top no probz. Which CSC settings modifies the ability to edit APN? I want to put the rest back to SPR.
Sent from my SM-N920P using Tapatalk
I used the msl code and everything appears the way you say it should... but the phone STILL says invalid sim!
What internal file must be deleted, the thing is unlocked on sprints end it just wont let go !
Phyzic said:
Have you found a way to retrieve your MSL without calling sprint? I've tried all the tool apps in the play store and using a logcat within the ##3282# menu with no luck. Getprop ril.MSL yields nothing, not even a not found error.
I've tried calling sprint for my MSL but refuse to release it.. I'm not exactly on their "nice" list - they've even called to tell me I'm "using too much of my [UNLIMITED] data" many times so I don't expect much from them anymore..
Any help or direction would be greatly appreciated
Click to expand...
Click to collapse
see this thread.. https://forum.xda-developers.com/sprint-galaxy-s5/general/guide-how-to-msl-code-t3628728 ....theres the rooted way...and i also posted the non rooted way....
Hello,
I rooted Sprint Note 5 from Nougat to Magisk and went ahead to replace SPR into XAS in all files under system/CSC folder. APN Type is still coming greyed out. Any help will be appreciated.
-Sunny

Frustrated by lack of global use and international FW/CSC

Hi,
I've had this FE for 2 months and still find it one of the best devices to date. However I find it increasingly frustrating that there is a lack of international FW so for instance, Samsung Pay doesn't work because it expects me to use a korean sim. There goes the need to try a Gear S3! Android pay works fine.
Also some of the other options are missing like WIFI calling and still my text messages don't receive delivery notifications..
Is there any likelyhood that this FE will be distributed more widely bringing with it an international FW package and CSC to make it a little more usable?
I'd also be glad to see the back of the SK Telecom branding and some of their network settings!
cheers
bonerp said:
Hi,
I'd also be glad to see the back of the SK Telecom branding and some of their network settings!
cheers
Click to expand...
Click to collapse
Flash L version of firmware wifi calling are available option, download "quick shortcut maker" and search wifi call
Would it be possible to port over or flash the CSC from the galaxy s7 exynos? For example the Canadian market has the exynos s7 and Rogers supports VoLTE and VoWiFi. Any chance someone can post a guide to port over these features?
Actually even the regular note 7 had these features, but the Canadian version ran the Snapdragon.
UltraNoob said:
Would it be possible to port over or flash the CSC from the galaxy s7 exynos? For example the Canadian market has the exynos s7 and Rogers supports VoLTE and VoWiFi. Any chance someone can post a guide to port over these features?
Actually even the regular note 7 had these features, but the Canadian version ran the Snapdragon.
Click to expand...
Click to collapse
i ported the S8+ ATT CSC features to my 935K so i could use HD Voice and VoLTE. can't get wifi calling to work (IMEI on phone has to match IMEI stored n ATT's system). you have to be rooted to attempt this change (and be sure to backup your phone before attempting this mod. i'm sharing my steps, but you do this at your risk. detailed steps i used are below:
i extracted the ATT vesions of the customer.xml, cscfeature.xml and cscfeature_network.xml files from the OMC\XAA\ATT folder in the csc package file posted in this thread
afterwards, i downloaded an S8+ ROM to extract the SmartCallProvider folder; this is needed to get the Places feature to work.
next, i used notepad++ to open and renamed the cscfeature.xml file to cscfeature-att.xml. i also searched for "whitepages" to find this line and <CscFeature_Common_ConfigSvcProviderForUnknownNumber>off,off,whitepages</CscFeature_Common_ConfigSvcProviderForUnknownNumber> and changed the off entries to whitepages. it should read <CscFeature_Common_ConfigSvcProviderForUnknownNumber>whitepages,whitepages,whitepages</CscFeature_Common_ConfigSvcProviderForUnknownNumber>
with cscfeature-att.xml still open, i opened cscfeature_network.xml copied all lines between ,<FeatureSet> and </FeatureSet> and pasted them into the cscfeature-att.xml file just before </FeatureSet>.
next, i saved the combined file as others-att.xml and i renamed customer.xml to customer-att.xml
after that, i copied the SmartCallProvider folder, others-att.xml and customer-att.xml to my device, then copied the xml files to /system/csc folder and set the correct permissions. i copied the SmartCallProvider folder to /system/app folder and set the correct permissions on the folder and apk
i booted to TWRP, used TWRP's file manager to rename the stock /system/csc/others,xml to others.xml.bak and rename the stock /system/csc/customer.xml to customer.xml.bak
next,using the TWRP file manager, i renamed others-att.xml to others.xml and i renamed customer-att.xml to customer.xml
finally, rebooted my device and upon reboot waited for the "Android upgrading process..." to finish.
after the upgrading process finished,
the cell network indicator switched to ATT's version, video call was enabled in the Samsung dialer
pressing 1 on the Samsung Dialer dialed my voicemail; since i use google voice, adding my number with the stock dialer didn't work
i can now access the call forwarding features and enter my google voice number
i know have the ability to identify unknown numbers - Caller ID and spam protection (although i don't know if it works)
and most importantly (for me), the "Places" tab is now available on the Samsung Dialer so i can search for places when i travel
malaccio said:
Flash L version of firmware wifi calling are available option, download "quick shortcut maker" and search wifi call
Click to expand...
Click to collapse
Can someone point me to the L version of the firmware and will it work ok on a malasia version dual sim model ok ?

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