Database Users

[Q] SM-N9005 trouble getting LTE enabled (hong kong firmware)

hey guys i've seen and tried a number of potential fixes for this issue but none have worked for me so far.
i can't get LTE/4g enabled. the hardware is capable, but the firmware won't have a bar of it.
i recently bought a note 3 sm-n9005 lte from a seller based in hong kong and as such, i have TGY as my CSC code.
N9005ZHUENF1 is listed as my bootloader, baseband version, pda version and csc version
i rooted it and tripped my knox flag within an hour of receiving it (lol, whoops, oh well)
being shipped with android 4.4.2, it seems to have the new bootloader that will not let me flash any other firmware. even other 4.4.2 firmwares from carriers in my own country wouldn't work, odin wouldn't get past the system.img.ext4 error. other users found the UK BTU rom to be the solution, but it wouldn't work for me. it seems strange to me that other 4.4.2 firmwares don't have this new locked bootloader or whatever.
i've had limited success with one of the solutions on smokey's wordpress, solution number 2 (google it, i cant post outside links yet). of course the LTE option in mobile networks never showed up, but i was out somewhere and when i checked my phone the LTE/4G icon was displayed up on my taskbar instead of the usual H+/3g one, and i did a quick speedtest and it was definitely running LTE, but then soon after that it stopped working again and i haven't seen it since. so at least i know the device definitely is compatible with my network's lte, its just a matter of enabling it properly on my device.
my learning curve on these things has been pretty steep the last couple of days.
i have a couple of questions.
1. can i change my csc on a 4.4.2 note 3 sm-n9005/has anyone done it yet?
2. if i can change the csc.. what implications will that have? i mean will that mandate certain firmware for a particular region, etc?
3. can i do some kind of wipe to remove this kitkat bootloader, so i can install new firmware from scratch??
thanks very much in advance, i'd love to gain some insight from you guys on this.

How many CSC codes available in your current firmware? If you have only 1 CSC in the firmware, you cannot change it without flashing another firmware.
You can check how many CSC in the firmware by install Phone INFO ★Samsung★ app, go to menu 'CSC Changer'.
Please see the screenshot.
{
"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"
}

Hey thanks for the reply. There is only one csc within my current firmware. I wouldn't mind flashing new firmware, except as of yet I haven't found any that I can, because of this locked boatloader so far it will only accept the current firmware, the others I tried all failed and softbricked my phone within about 5 seconds of starting odin. If anyone knows of any others that might work for this phone, im all ears.

If you purchased from Hong Kong, check if it's a 16gb model. If it is, no other firmware will work add they are for the 32gb models, which would explain the failure. The bootloader isn't locked, but the partitions would be a different layout.
Sent from my leanKernel 3.2 powered stock 4.4.2 (NF1) SM-N900T

Damn. Yeah it is 16gb. I didn't realise the size would affect things like that. Should have bought the 32gb. I guess all I can do is wait for an official update now. Will research more thoroughly before I buy next time

Problem solved
i found a fix guys. anyone else with an SM-N9005 whos having trouble getting LTE to switch on can follow my lead here.
NOTE: YOU WILL NEED ROOT ACCESS FOR THIS, SO GET THAT DONE FIRST. where possible, try use a method that won't trip your knox flag.
this first potential fix below did not work for me, but i understand it may work for others depending on which firmware you have. credit goes to smokey's wordpress for this. (i cant yet post outside links or i would link the page here, just google it)
1. Change with a root explorer of your choice (e.g. Root Explorer, Solid Explorer or EF File Explorer) the value “false” in file persist.radio.lteon into “true” by way of build-in text editor of the root explorer. The file is located in root/data/property. Be sure permissions of persist.radio.lteon are set to rw, after altering the file save the file and make it read-only. Reboot your phone, now you will see and be able to pick the option “LTE/WCDMA/GSM (auto connect)” in Network Mode menu. Important: before altering ANY file on your phone be sure you have a copy of the original, unaltered file!!! Advantage of this solution: even after a phone reboot the option “LTE/WCDMA/GSM (auto connect)” will remain visible/activated.
if the above works for you then by all means, do it, and forget the rest of this post. but for me it didn't change anything, ALTHOUGH i did do the rest of this fix with the above already done. im now outside lte coverage so i cant be bothered going for a drive just to do some more trial and error lol. so it cant hurt to have this done first.
do this in an area that you KNOW has good LTE coverage, so you can at least get confirmation that things are working (or not working) throughout the process. if not, you will have no idea whether it worked or not, and if you missed something, it will be a pain in the ass to go back and forth trying to get it right.
its important that you do things in the order i mention below. i have done some trial and error and if the order is messed up, you will remain stuck on 3g.
1. download an app called "Advanced Signal Status" from the play store, and open it up. select "additional info", then select "device information".
2. open the first drop down menu, it has options like GSM ONLY, CDMA ONLY, LTE ONLY, GSM/CDMA, LTE/GSM, LTE/CDMA, LTE/GSM/CDMA. these all determine which radio combinations can be active at any given time. for most networks, choose LTE/GSM/CDMA. afterwards, it may revert back to LTE/GSM or whatever. thats fine, as long as you still get reception where you should. this should force your phone into LTE mode, but we're not finished yet. keep reading.
3. you may need to switch your data connection off then on again for lte to start working. if it still goes into 3g, go back into advanced signal status and select "LTE ONLY" to force any other connections off.
4. once LTE is active, then go back and select LTE/GSM/CDMA or whatever your network uses, as long as theres LTE/something else. the first page of advanced signal status should show signal strength values under LTE (4g). if everything is still n/a and you're not getting LTE reception, this solution isn't going to work for you. if the LTE is now working, awesome, but we still aren't finished, because it will reset the next time you reboot your phone and you'll be back to step one. not a huge deal, but just annoying. if you can live with that, then you can stop here if you want. personally, i like my fix to be permanent.
5. you need a root explorer app with a built in txt editor function. while doing my trial and error for this i tried a few different ones but the only one that really worked properly for me was called "Root Explorer". but use whatever works for you. root explorer is a paid app ($4.85 when i did it), the free version does not access root files. easily worth the money.
6. you now need to browse to /root/system and you are looking for a file called "build.prop". BEFORE GOING ANY FURTHER, BACK THAT FILE UP! if you are using Root Explorer, like me, then it will create a backup automatically when you save changes, but do it anyway just to be safe.
7. open "build.prop" using the explorer's built-in text editor. it may ask you whether you want to alter the file's permissions in order to edit it, so yes you want to do that.
8. scroll about 2/3 of the way down and you will find a few lines that look like this:
#
# System props for telephony
# System prop to turn on CdmaLTEPhone always
telephony.lteOnCdmaDevice=0
9. while being very careful not to change anything else, change the last character on the last line so that it looks like this:
telephony.lte.OnCdmaDevice=1
10. save changes and exit.
11. make sure LTE is still active, and reboot your phone.
12. open up the settings gui and go to Connections/More Networks/Mobile Networks/
13. you should now have an ADDITIONAL network mode selector (the original one won't have changed, and still won't have an lte option) and it should be set to something like GSM/WCDMA/LTE. if not, then change it so it is. and DONT TOUCH IT AGAIN.
14. if you want, you can now uninstall the "advanced signal status" app because you won't need it unless you do this all again some day. if you mess around with anything we've just done and you lose your lte service, you'll need to start again and do things in this order.
i hope this helps some of you. i got my note 3 a week ago and have been tearing my hair out over not having lte because that was the main reason i bought a new phone. i'm by no means an expert (but i am an IT student, so thats something), so theres probably a tidier way to do this, but hey, it works so i'll take it

QPST - Backup/Restore modem-config

How to get into Diag mode:
1) open dialer
2) enter: *#*#717717#*#*
3) you'll see a toast "diag mode enabled"
To disable diag-mode enter the same code again.
How to install drivers in Windows:
1) download and extract xiaomi_mi2_diag_driver.zip
2) after you've connected your phone in diag mode you'll see very much devices
3) choose custom source to search for driver and select the extracted folder.
4) only 3 of the devices will install it doesn't matter we don't need the others.
How to configure QPST:
1) open QPST configuration from start menu
2) on tab "ports" click on "Add new Port"
3) you should see two qualcom ports in the list. choose one and click OK.
4) if displayed phone name is SURF9615, you've selected the correct one. otherwise add the second device, too

But why?
Hello M1cha,
I'm sorry if this is obvious but what exactly can I use this for
Is it changing my IMEI?
And if so, why would I want to change it?
Again, I'm sorry if the answer is obvious and I'm just asking a stupid question.
Unrelated question:
Do you know if Xiaomi.eu will really shut down or not? I can't seem to get straight answers on the Q&A forum

Redme Note LTE TD
Hello
I used your guide and http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
to unlock the WCDMA frequencies on my Redmi NOTE LTE TD ... bought in china .... everything OK ... but the phone works on GPRS ... I have also tried using the menu * # * # 4636 # * # * .. but nothing ..
do you have same idea ??
thank you !

Gobbenobber said:
Hello M1cha,
I'm sorry if this is obvious but what exactly can I use this for
Is it changing my IMEI?
And if so, why would I want to change it?
Again, I'm sorry if the answer is obvious and I'm just asking a stupid question.
Unrelated question:
Do you know if Xiaomi.eu will really shut down or not? I can't seem to get straight answers on the Q&A forum
Click to expand...
Click to collapse
On mi2 u can't change the IMEI because it's locked.
But you can change several settings and unlock bands.
I don't think MA shuts down soon but Marks ups and downs are very annoying.
mzz75 said:
Hello
I used your guide and http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
to unlock the WCDMA frequencies on my Redmi NOTE LTE TD ... bought in china .... everything OK ... but the phone works on GPRS ... I have also tried using the menu * # * # 4636 # * # * .. but nothing ..
do you have same idea ??
thank you !
Click to expand...
Click to collapse
Maybe these bands really aren't supported by hardware?

m11kkaa said:
On mi2 u can't change the IMEI because it's locked.
But you can change several settings and unlock bands.
I don't think MA shuts down soon but Marks ups and downs are very annoying.
Maybe these bands really aren't supported by hardware?
Click to expand...
Click to collapse
but when I enable WCDMA ..i can see the network [0]=CellInfoWcdma ..... but the type of network is still GPRS ... maybe some setting?

I don't think so. That's the normal behavior if a band isn't supported.
You can even enabled LTE but it won't work because the hw doesn't support it.

Modem Dead
I'm sorry to bother you again, but I have a big problem ..... with Qualcomm QPST I have a modified live parameters for the WCDMA network, but now the modem does not work anymore (2g, 3g, lte) and I can not connect the phone with QPST (say NO pHONE) .... I can do something ??
thanks

Well you have to restore the parameters to the original ones. I hope you made a backup.

m11kkaa said:
Well you have to restore the parameters to the original ones. I hope you made a backup.
Click to expand...
Click to collapse
I can not do the restore ... QPST Configurator does not see the phone ... or is there another method ??

Is it possible to enable wcdma band 900 MHz on mi2s?

orlanddon said:
Is it possible to enable wcdma band 900 MHz on mi2s?
Click to expand...
Click to collapse
I'd like to know that, too

i have one of the first batch of mi2 without wcdma 900 and it's very important to my operator so you know if it's hw supported or not? If i mess up with miflash i will restore everything or not? After a wipe i must repeat all the procedure?

Does somebody know which code it is for Redmi2? *#*#717717#*#* doesn't work... I want to try to unlock LTE band 20 (800Mhz), do you think any chance?

Any of you have got unlock 900MHz 3G on MI2 with this ?
Very interested in.
regards

I tried the tips but something's wrong :
QPST is ok i see my phone MI2 : APQ8064
With RF NV manager i got the error when i read from phone :
NvManager::getNvItemsFromPhone( const string comPort ) - QpstServer::sendSyncImpl - Bad response from phone (DM packet commands 19-24)
Again when i tried to make a backup :
"Memory Backup failed"
"Disk Error while writing to file"
Really stange... any advise ?

m11kkaa said:
How to get into Diag mode:
1) open dialer
2) enter: *#*#717717#*#*
3) you'll see a toast "diag mode enabled"
To disable diag-mode enter the same code again.
How to install drivers in Windows:
1) download and extract xiaomi_mi2_diag_driver.zip
2) after you've connected your phone in diag mode you'll see very much devices
3) choose custom source to search for driver and select the extracted folder.
4) only 3 of the devices will install it doesn't matter we don't need the others.
How to configure QPST:
1) open QPST configuration from start menu
2) on tab "ports" click on "Add new Port"
3) you should see two qualcom ports in the list. choose one and click OK.
4) if displayed phone name is SURF9615, you've selected the correct one. otherwise add the second device, too
Click to expand...
Click to collapse
Hi M1cha, I'd like to so a backup, but I can't let it work.
My problems start from the biginning: when I enter the code I got no toast message. I tried to connect anyway the phone (when is on, with and without debug option), but I don't see much devices, only the usual MI2 MTP.
Suggestions? Could be ROM releated?

Fortinho said:
Hi M1cha, I'd like to so a backup, but I can't let it work.
My problems start from the biginning: when I enter the code I got no toast message. I tried to connect anyway the phone (when is on, with and without debug option), but I don't see much devices, only the usual MI2 MTP.
Suggestions? Could be ROM releated?
Click to expand...
Click to collapse
yes, this works in MIUI only

m11kkaa said:
yes, this works in MIUI only
Click to expand...
Click to collapse
Still problems :/
I got this:
{
"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"
}
And If I try to update drivers individually, only one will successfull install. It's normal?
Anyway, after that, I don't know how to open QPST configuration from start menu. What start menu?
Thank you.

Fortinho said:
Still problems :/
I got this:
And If I try to update drivers individually, only one will successfull install. It's normal?
Anyway, after that, I don't know how to open QPST configuration from start menu. What start menu?
Thank you.
Click to expand...
Click to collapse
Up.

Fortinho said:
If I try to update drivers individually, only one will successfull install. It's normal?
Click to expand...
Click to collapse
I don't know but you will see after with qpst if it works.
Fortinho said:
I don't know how to open QPST configuration from start menu. What start menu?
Click to expand...
Click to collapse
What windows do you've got?
With Seven : Start menu is bottom left on your screen
With 8 : go on the mosaic screen (where you have all your program) and type QPST. You will find QPST configuration

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?

[How to] - Get VoLTE working for T-Mobile US (yes, it actually works)

Unlocking more bands (specifically band 12) is on the way, please be patient as there are a lot of bugs with having a modified modem firmware.
I AM NOT RESPONSIBLE FOR ANY DAMAGE DONE TO YOUR DEVICE! YOUR WARRANTY IS VOID IF YOU FOLLOW THIS TUTORIAL!
This took like 2 weeks to figure out, I was about to give up, but then it worked. VoLTE on band 4 and 2 for T-Mobile in the USA!!
I have only tested this on my phone, but it should work on others (assuming it is still an A2). I have not verified if this works for phones converted to the 6X so if you want to try please be careful.
Alright, enough with the warnings and stuff.
1. First, enable usb debugging and plug your phone into your computer.
1. Download qpst and install it. You will also need this file . Just save it somewhere, we will use it in a minute.
2. run the following commands (note that you MUST be rooted to enable this. The mod survives returning to stock unrooted, and even survives OTA so you can unroot when finished if you want.):
'''
adb shell
su
setenforce 0
setprop sys.usb.config diag,serial_cdev,rmnet,adb
'''
3. once installed there should be an entry in your start menu. open the folder labelled qpst and select the program "PDC".
4. click the Device dropdown and select the Qualcomm device. (it may not show up first time, make sure you have installed the drivers for your device)
5. once you select your device you should see a lost of items, this can take a minute depending on the speed of your computer.
6. click the load button and select the mcfg_sw.mbn you downloaded earlier.
7. "Commercial-TMO" should now be a listing in the description. Highlight it and right click on it, hover over "SetSelectedConfig" and select "sub0". Let it load for a bit.
8. it should now say pending on the Sub0 column of the Commercial-TMO. Now click activate and let it load.
9. on your phone, you must disable reigon checking. To do so go to your phone app and type in the following: *#*#86583#*#*
10. reboot your phone.
This worked for me, I have not verified that it works for others yet, so if it works for you, please let me know. Also let me know of any bugs.
Shreenshots below
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Can this phone work on Metro PCS network

I tried and tried, but i cannot get PST to see my phone. I loaded qualcomm drivers and ADB drivers, nothing. Any suggestions?
Daha3ker said:
Unlocking more bands (specifically band 12) is on the way, please be patient as there are a lot of bugs with having a modified modem firmware.
I AM NOT RESPONSIBLE FOR ANY DAMAGE DONE TO YOUR DEVICE! YOUR WARRANTY IS VOID IF YOU FOLLOW THIS TUTORIAL!
This took like 2 weeks to figure out, I was about to give up, but then it worked. VoLTE on band 4 and 2 for T-Mobile in the USA!!
I have only tested this on my phone, but it should work on others (assuming it is still an A2). I have not verified if this works for phones converted to the 6X so if you want to try please be careful.
Alright, enough with the warnings and stuff.
1. First, enable usb debugging and plug your phone into your computer.
1. Download qpst and install it. You will also need this file . Just save it somewhere, we will use it in a minute.
2.once installed there should be an entry in your start menu. open the folder labelled qpst and select the program "PDC".
3. click the Device dropdown and select the Qualcomm device. (it may not show up first time, make sure you have installed the drivers for your device)
4. once you select your device you should see a lost of items, this can take a minute depending on the speed of your computer.
5. click the load button and select the mcfg_sw.mbn you downloaded earlier.
6. "Commercial-TMO" should now be a listing in the description. Highlight it and right click on it, hover over "SetSelectedConfig" and select "sub0". Let it load for a bit.
7. it should now say pending on the Sub0 column of the Commercial-TMO. Now click activate and let it load.
8.on your phone, you must disable reigon checking. To do so go to your phone app and type in the following: *#*#86583#*#*
9. reboot your phone.
This worked for me, I have not verified that it works for others yet, so if it works for you, please let me know. Also let me know of any bugs.
Shreenshots below
Click to expand...
Click to collapse

This sounds scary. I thought volte works on band 12. If the band is missing how would it work. How can you confirm it actually works.

Hi!
I am running into the same issue of two computers (Win 7 and Win 10) that cannot see the phone. Anyone willing to help in getting PDC to see the phone? Thanks!

I have a couple questions for OP
Will this prevent any OTA?
Could you also take a screenshot of 4g while on a call?
What bugs do you experience?
I definitely see that your method unlocks some options in phone info, in the screenshots, but it doesn't necessarily prove anything if you can't see 4g while in a call and see a difference in speed. I notice the difference in speed when trying to do things on a call while on 3g, so if I were to do this I would definitely be able to tell it worked or not.

mymeatb18 said:
I have a couple questions for OP
Will this prevent any OTA?
Could you also take a screenshot of 4g while on a call?
What bugs do you experience?
I definitely see that your method unlocks some options in phone info, in the screenshots, but it doesn't necessarily prove anything if you can't see 4g while in a call and see a difference in speed. I notice the difference in speed when trying to do things on a call while on 3g, so if I were to do this I would definitely be able to tell it worked or not.
Click to expand...
Click to collapse
I would like to know this as well.

Ulver said:
I would like to know this as well.
Click to expand...
Click to collapse
If you want a specific screenshot let me know, I have been using this for a while though with no issues. The Band 12 has a lot of tuning data required and may not be compatible with all a2 devices without buying tuning equipment. (I used a friend's and hoped this was not the case) :/ I will keep working on it though. All is not lost yet.
As for the device not showing in the computer, it does require root as of the pie update because xiaomi disabled diag mode by default... :/
To enable it in the pie update you need to enter the following in adb shell for it to show up in qpst:
su
setprop sys.usb.config diag,adb
Note, do not reboot yet, rebooting resets these values..
Then re- insert the phone into your computer and it should show up.
The nice thing is that this survives ota and root removal once put on so if you want ota you can have it, just unroot once you get the mod working.

Hi Daha3ker,
I tried to enable with the mentioned commands and still PDC cannot see my phone.
Daha3ker said:
If you want a specific screenshot let me know, I have been using this for a while though with no issues. The Band 12 has a lot of tuning data required and may not be compatible with all a2 devices without buying tuning equipment. (I used a friend's and hoped this was not the case) :/ I will keep working on it though. All is not lost yet.
As for the device not showing in the computer, it does require root as of the pie update because xiaomi disabled diag mode by default... :/
To enable it in the pie update you need to enter the following in adb shell for it to show up in qpst:
su
setprop sys.usb.config acm,diag,mtp,adb
setprop persist.sys.usb.config acm,diag,mtp,adb
Note, do not reboot yet, rebooting resets these values..
Then re- insert the phone into your computer and it should show up.
The nice thing is that this survives ota and root removal once put on so if you want ota you can have it, just unroot once you get the mod working.
Click to expand...
Click to collapse

Can't seem to make the phone appear in PDC as well, I've rooted the device with magisk and have tried to input the commands as suggested but it is still not being detected...

This is what I have

Any word on this?

Update, with stock you need to enter the command
setprop sys.usb.config diag,adb
While the phone is plugged in to the computer for it to work. I was using a different set of debug tools.

I had to use the following command to get PDC to work.
su
setenforce 0
setprop sys.usb.config diag,serial_cdev,rmnet,adb
Im running Pixel Experience 20190320 rom with Magisk 18.1.
QPST 2.7.460
I used the QUD.WIN.1.1 Installer-10040.5 drivers on Windows 10 x64.

Could you unroot and relock bootloader and have this continue working and survive OTA updates?
---------- Post added at 11:18 PM ---------- Previous post was at 10:25 PM ----------
Looks like this survives a complete fastboot flash/relock. How would you reverse this and go back to stock?
---------- Post added at 11:30 PM ---------- Previous post was at 11:18 PM ----------
I want to switch back because sometimes when I make calls, it's high pitched and quiet. I can turn off voLTE to go back to the way it was, but would be nice to be stock again.

What bands it's unlocked?
In Brazil is primordial that b28 is unlocked to use Volte (700 MHz)

joaomiguelsm said:
What bands it's unlocked?
In Brazil is primordial that b28 is unlocked to use Volte (700 MHz)
Click to expand...
Click to collapse
Doesn't unlock any bands, just enables voLTE on T-Mobile in the USA. Unfortunately, it's pretty buggy, maybe due to recent updates.

Ulver said:
Doesn't unlock any bands, just enables voLTE on T-Mobile in the USA. Unfortunately, it's pretty buggy, maybe due to recent updates.
Click to expand...
Click to collapse
Oh, sad
This is the worst thin of Xiaomi in Brazil

PDC not recognizing phone
Hi,
I've been trying to get this working off and on for a couple of weeks. I can't get PDC to populate the drop down menu. I am able to get QPST to recognize the phone after doing :
su
setprop sys.usb.config diag,adb in an adb shell. After those commands, the Qualcomm driver loads (according to device manager). QPST configuration finds the phone on COM9. But when I load PDC I get nothing. Any thoughts? The voice calling on 2g in New York is horrible.
Thanks, Mike

mtrohan said:
Hi,
I've been trying to get this working off and on for a couple of weeks. I can't get PDC to populate the drop down menu. I am able to get QPST to recognize the phone after doing :
su
setprop sys.usb.config diag,adb in an adb shell. After those commands, the Qualcomm driver loads (according to device manager). QPST configuration finds the phone on COM9. But when I load PDC I get nothing. Any thoughts? The voice calling on 2g in New York is horrible.
Thanks, Mike
Click to expand...
Click to collapse
im getting same problem... can solve??
pleaaaase... need help.