Related
Hi there, I have an( nTelos) Galaxy S5 SM G900R7. I just got this phone with a bad ESN, thinking it would work in the UK with GSM, and just put CF-AutoRoot on it . I have been trying to follow these guides to get the phone to work on GSM bands because I guess the R7 only shows LTE/CDMA and CDMA option for network mode. No apn settings that I can see or anything I was used to with my old S 2X.
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
http://forum.xda-developers.com/galaxy-s5/general/guide-enable-unlock-edit-add-gsm-lte-t2948822
The problem is I CANT DO ANYTHING because the dialer codes are not working? Everytime I type in a code like *#080# and hit the call button it says "Mobile network not available" after a few seconds. I've tried using Phone Info Samsung to access different secret codes but none will work and I get this error message.
This is only my first night of trying/reading forums/failing but I feel out of my depth on this one. I hope your collective expertise can help. My S2x is on its last legs so the situation is semi-dire
Hi there
You already founded the right place for your device so there is the best place for asking that. Try again here:
[SUPPORT THREAD] The Galaxy ~S5~ All in one support thread!**NOOB FRIENDLY**
Good luck
Thanks, I've searched extensively because my problem has changed now. I ended up putting kitkat firmware on my phone instead, which then was able to be read in RNDIS+DB+MODEM mode by my PC and installed the Remote NDIS Driver. I was able to get into QPST and QXDM and mess around with things I shouldn't have messed around with. Now my phone cannot shut down. Whenever I try to power off, it says Power off , the thing spins, and it just stays there until it eventually reboots on its own. I can only shut the phone off by pulling the battery.
I've tried to use the software download in QPST to restore my NV using the backup I made beforehand, but my phone keeps flashing in and out of connection with the COM5 port, going from being there to showing no phone every couple of seconds or so. So the software cannot get a lock on my phone to restore the NV. I can view the .qcn and see all the NV values and everything, but with my phone going in and out of connection, I am not sure how I would be able to edit the values.
I am wondering, is there a way to manually restore a .qcn or the NV values using the phone itself, or some way to solve this connection problem? or perhaps some other software?
Again it is an SM-G900R7 with stock kitkat4.4.2 fimware and CF autoroot installed.
When I first got this phone back in March I bricked it the next day playing around with it. @petermg posted the firmwares for this device on July 24th. Luckily I kept it. Big thanks to him for sharing them.
This method also works on the Boost Mobile LG G Stylo LS770 which I have tested on AT&T, also.
Downloaded the files from the Sprint LG G3 SIM Unlock guide.
You will need:
a rooted device
Shortcut Master lite (in the Play Store)
Root Browser (in the Play Store)
files in attachment
1. Go to Settings/About Phone/Software Info and hit build number 7 times to enable Developer Options
2. Go to Developer Options and make sure Enable OEM Unlock and USB Debugging is checked.
3. Root with Kingroot
4. Download Root Browser from the Play Store
5. Open Root Browser, go to /carrier/apps and delete everything in it.
6. Copy the files from the attachment below to the same folder /carrier/apps. Make sure the permissions are set correctly. 'node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600. You can use Root Browser. I had no issues.
7. Now to go /data/data/com.android.providers.telephony/databases and delete everything in it.
Now would be a good time to go to Settings/Mobile Networks/Network Mode/ and put it on GSM/UMTS
8. Power Down phone, put in your GSM SIM card, and boot on up.
9. Open up Shortcut Master lite and do a search for 'apn' without the quotes. We are looking for one that says Hidden Menu com.lge.hiddenmenu.ModemProtocol.ApnSettings. I attached a pic. Once you select it, you will need to hold down the recent windows button and choose New APN, or just select the one already there from Sprint/Boost and edit it. Your choice...
Once you are done adding/editing APN, don't forget to hit the recent window button again to save APN. If you just hit the back button, you will have to redo it. Once saved, then make sure it is selected. Your data should show up.
Things to keep in mind:
You might not get LTE. Sprint has different bands/frequencies than GSM.
You will get HSPA & HSPA+. I did a speed test on AT&T Go Phone SIM and was getting 12mbps easily.
I did a ##72786# BEFORE I did these steps. Every reboot it tries to do a Hands Free Activation. It doesn't mess nothing up, but just annoying. Also I get a message saying 'can't complete init setup due to GSM network' You can ignore that also. Also, since my device wasn't activated first, my hotspot options disappeared. I haven't found a way to put it back yet.
Signal Meter only shows 3G, but Settings/Status shows HSPA or HSPAP (+) (see screenshots)
I think the SIM card you are going to use has to be active? I tried a T-mobile SIM and didn't get no signal. My AT&T SIM was. Let us know, please.
To undo what we just did, just dial ##72786# in dialer. My Tribute 5 is bad ESN for Boost Mobile, so I can't activate it to get rid of the HFA or get the hotspot feature back. I'm sure someone here will figure it out.
I did do an extra step with Shortcut Master, but I don't think it is required. Its just another way to set the Network Mode to GSM/WCDMA/ when Boost Mobile actually gives us the option without leaving it out. Since it is a 'Global' Phone
Post your screenshots of some Speed Tests. Lets see what this phone is capable of.
mabry said:
When I first got this phone back in March I bricked it the next day playing around with it. @petermg posted the firmwares for this device on July 24th. Luckily I kept it. Big thanks to him for sharing them.
This method also works on the Boost Mobile LG G Stylo LS770 which I have tested on AT&T, also.
Downloaded the files from the Sprint LG G3 SIM Unlock guide.
You will need:
a rooted device
Shortcut Master lite (in the Play Store)
Root Browser (in the Play Store)
files in attachment
1. Go to Settings/About Phone/Software Info and hit build number 7 times to enable Developer Options
2. Go to Developer Options and make sure Enable OEM Unlock and USB Debugging is checked.
3. Root with Kingroot
4. Download Root Browser from the Play Store
5. Open Root Browser, go to /carrier/apps and delete everything in it.
6. Copy the files from the attachment below to the same folder /carrier/apps. Make sure the permissions are set correctly. 'node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600. You can use Root Browser. I had no issues.
7. Now to go /data/data/com.android.providers.telephony/databases and delete everything in it.
Now would be a good time to go to Settings/Mobile Networks/Network Mode/ and put it on GSM/UMTS
8. Power Down phone, put in your GSM SIM card, and boot on up.
9. Open up Shortcut Master lite and do a search for 'apn' without the quotes. We are looking for one that says Hidden Menu com.lge.hiddenmenu.ModemProtocol.ApnSettings. I attached a pic. Once you select it, you will need to hold down the recent windows button and choose New APN, or just select the one already there from Sprint/Boost and edit it. Your choice...
Once you are done adding/editing APN, don't forget to hit the recent window button again to save APN. If you just hit the back button, you will have to redo it. Once saved, then make sure it is selected. Your data should show up.
Things to keep in mind:
You might not get LTE. Sprint has different bands/frequencies than GSM.
You will get HSPA & HSPA+. I did a speed test on AT&T Go Phone SIM and was getting 12mbps easily.
I did a ##72786# BEFORE I did these steps. Every reboot it tries to do a Hands Free Activation. It doesn't mess nothing up, but just annoying. Also I get a message saying 'can't complete init setup due to GSM network' You can ignore that also. Also, since my device wasn't activated first, my hotspot options disappeared. I haven't found a way to put it back yet.
Signal Meter only shows 3G, but Settings/Status shows HSPA or HSPAP (+) (see screenshots)
I think the SIM card you are going to use has to be active? I tried a T-mobile SIM and didn't get no signal. My AT&T SIM was. Let us know, please.
To undo what we just did, just dial ##72786# in dialer. My Tribute 5 is bad ESN for Boost Mobile, so I can't activate it to get rid of the HFA or get the hotspot feature back. I'm sure someone here will figure it out.
I did do an extra step with Shortcut Master, but I don't think it is required. Its just another way to set the Network Mode to GSM/WCDMA/ when Boost Mobile actually gives us the option without leaving it out. Since it is a 'Global' Phone
Post your screenshots of some Speed Tests. Lets see what this phone is capable of.
Click to expand...
Click to collapse
Moderators, please check this Post. I think I double posted it accidently. Thank you.
EDIT
Duplicate post was removed, thank you.
Boost Mobile lg LS675
Hi, I have the exact same phone.. I did everything step by step all the way to where I'm to go to settings I did not get the option to select GSM. only LTE/CDMA and CDMA.
I rooted with kingo root, downloaded root browser, shortcut master lite, downloaded attach. files , deleted current files on /carrier/apps and pasted downloaded ones. I fixed the permission to node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600.. ,
I deleted the files on /data/data/com.android.providers.telephony/databases.. Once I went into settings as suggested that's where i'm stuck since I don't have the GSM option. I will try to reset my phone to factory and starting fresh... hoping it might work. Any suggestions.. One thing I did notice is that once i restart my phone the files on /data/data/com.android.providers.telephony/databases , re appear once I restart my phone.. If you can help me.. That will be so awesome!! If not I'll keep trying regardless.. Thank's in advance..
Okay so I was able to get it going following this similar steps..
1. root phone with kingoroot (2). download root browser and shortcut master lite from play store. (3) download attached files node.db and node.db-journal ( i placed them in root internal memory phone) (4) open root browser and navigate to /carrier/apps and delete original node.db,node.db-journal and replace with downloaded ones, hold each file and click on permissions to set node.db to rw-rw 0660, node.db-journal to rw 0600, (5). turn off the phone and add desired sim then turn the phone back on.(6).open shortcut master lite and search com.lge.hiddenmenu.jcm_only.networkmode. launch it. also I added to favorite and home not sure if its necessary but i did it. select LTE/GSM/WCDMA.. or select gsm only and then LTE/GSM/WCDMA and you will notice your sim connects to your network. Tested and working so far.. I will try apn and keep you updated.
mabry said:
When I first got this phone back in March I bricked it the next day playing around with it. @petermg posted the firmwares for this device on July 24th. Luckily I kept it. Big thanks to him for sharing them.
This method also works on the Boost Mobile LG G Stylo LS770 which I have tested on AT&T, also.
Downloaded the files from the Sprint LG G3 SIM Unlock guide.
You will need:
a rooted device
Shortcut Master lite (in the Play Store)
Root Browser (in the Play Store)
files in attachment
1. Go to Settings/About Phone/Software Info and hit build number 7 times to enable Developer Options
2. Go to Developer Options and make sure Enable OEM Unlock and USB Debugging is checked.
3. Root with Kingroot
4. Download Root Browser from the Play Store
5. Open Root Browser, go to /carrier/apps and delete everything in it.
6. Copy the files from the attachment below to the same folder /carrier/apps. Make sure the permissions are set correctly. 'node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600. You can use Root Browser. I had no issues.
7. Now to go /data/data/com.android.providers.telephony/databases and delete everything in it.
Now would be a good time to go to Settings/Mobile Networks/Network Mode/ and put it on GSM/UMTS
8. Power Down phone, put in your GSM SIM card, and boot on up.
9. Open up Shortcut Master lite and do a search for 'apn' without the quotes. We are looking for one that says Hidden Menu com.lge.hiddenmenu.ModemProtocol.ApnSettings. I attached a pic. Once you select it, you will need to hold down the recent windows button and choose New APN, or just select the one already there from Sprint/Boost and edit it. Your choice...
Once you are done adding/editing APN, don't forget to hit the recent window button again to save APN. If you just hit the back button, you will have to redo it. Once saved, then make sure it is selected. Your data should show up.
Things to keep in mind:
You might not get LTE. Sprint has different bands/frequencies than GSM.
You will get HSPA & HSPA+. I did a speed test on AT&T Go Phone SIM and was getting 12mbps easily.
I did a ##72786# BEFORE I did these steps. Every reboot it tries to do a Hands Free Activation. It doesn't mess nothing up, but just annoying. Also I get a message saying 'can't complete init setup due to GSM network' You can ignore that also. Also, since my device wasn't activated first, my hotspot options disappeared. I haven't found a way to put it back yet.
Signal Meter only shows 3G, but Settings/Status shows HSPA or HSPAP (+) (see screenshots)
I think the SIM card you are going to use has to be active? I tried a T-mobile SIM and didn't get no signal. My AT&T SIM was. Let us know, please.
To undo what we just did, just dial ##72786# in dialer. My Tribute 5 is bad ESN for Boost Mobile, so I can't activate it to get rid of the HFA or get the hotspot feature back. I'm sure someone here will figure it out.
I did do an extra step with Shortcut Master, but I don't think it is required. Its just another way to set the Network Mode to GSM/WCDMA/ when Boost Mobile actually gives us the option without leaving it out. Since it is a 'Global' Phone
Post your screenshots of some Speed Tests. Lets see what this phone is capable of.
Click to expand...
Click to collapse
Hi. if you want to change the icon 3g to 4g, just edit the ro.build.target_operador = SPR line, you can put ro.build.target_operador = att and reboot and see 4g. no matter which operator sim use. 4g icon always reflect
ltindi32 said:
Hi. if you want to change the icon 3g to 4g, just edit the ro.build.target_operador = SPR line, you can put ro.build.target_operador = att and reboot and see 4g. no matter which operator sim use. 4g icon always reflect
Click to expand...
Click to collapse
Thanks for looking out. So much easier than changing the icon.. lol
Launcher
would any of you guys know if this procedure would be the same to flash the tribute 5 from sprint to page plus?
would this be the same for LG Tribute HD LS676 Boost
mr_reaper said:
would this be the same for LG Tribute HD LS676 Boost
Click to expand...
Click to collapse
Couldn't tell ya, bro. Won't hurt to try, but be careful what you doing. I'm sure the firmwares ain't out yet in case you boot loop it.
ceelos218 said:
would any of you guys know if this procedure would be the same to flash the tribute 5 from sprint to page plus?
Click to expand...
Click to collapse
Nope. Page Plus is Verizon. They have to put the MEID on the account just like Boost/Sprint. If said MEID ain't in the Verizon system, they won't take it.
I rooted and unlocked my LG675 Boost. After putting my SIM card (MetroPCS) in the phone still says Emergency Calls Only. What did I do wrong? I followed all the steps mentioned above. I even have the APN set to MetroPCS.
Any luck with Tribute HD rooting and unlock? Any help is much appreciated.
hi - can somebody know how i can do root for lg tribute HD (LS676) or maybe you know how i can enabled DIAG mode ?
forward1987 said:
hi - can somebody know how i can do root for lg tribute HD (LS676) or maybe you know how i can enabled DIAG mode ?
Click to expand...
Click to collapse
second this request! there must be a ton of LG Tribute HDs out in the wild since it was a $20 Black Friday sale item!
mabry said:
When I first got this phone back in March I bricked it the next day playing around with it. @petermg posted the firmwares for this device on July 24th. Luckily I kept it. Big thanks to him for sharing them.
This method also works on the Boost Mobile LG G Stylo LS770 which I have tested on AT&T, also.
Downloaded the files from the Sprint LG G3 SIM Unlock guide.
You will need:
a rooted device
Shortcut Master lite (in the Play Store)
Root Browser (in the Play Store)
files in attachment
1. Go to Settings/About Phone/Software Info and hit build number 7 times to enable Developer Options
2. Go to Developer Options and make sure Enable OEM Unlock and USB Debugging is checked.
3. Root with Kingroot
4. Download Root Browser from the Play Store
5. Open Root Browser, go to /carrier/apps and delete everything in it.
6. Copy the files from the attachment below to the same folder /carrier/apps. Make sure the permissions are set correctly. 'node.db' needs to be set at rw-rw 0660, 'node.db-journal' needs to be set at rw 0600. You can use Root Browser. I had no issues.
7. Now to go /data/data/com.android.providers.telephony/databases and delete everything in it.
Now would be a good time to go to Settings/Mobile Networks/Network Mode/ and put it on GSM/UMTS
8. Power Down phone, put in your GSM SIM card, and boot on up.
9. Open up Shortcut Master lite and do a search for 'apn' without the quotes. We are looking for one that says Hidden Menu com.lge.hiddenmenu.ModemProtocol.ApnSettings. I attached a pic. Once you select it, you will need to hold down the recent windows button and choose New APN, or just select the one already there from Sprint/Boost and edit it. Your choice...
Once you are done adding/editing APN, don't forget to hit the recent window button again to save APN. If you just hit the back button, you will have to redo it. Once saved, then make sure it is selected. Your data should show up.
Things to keep in mind:
You might not get LTE. Sprint has different bands/frequencies than GSM.
You will get HSPA & HSPA+. I did a speed test on AT&T Go Phone SIM and was getting 12mbps easily.
I did a ##72786# BEFORE I did these steps. Every reboot it tries to do a Hands Free Activation. It doesn't mess nothing up, but just annoying. Also I get a message saying 'can't complete init setup due to GSM network' You can ignore that also. Also, since my device wasn't activated first, my hotspot options disappeared. I haven't found a way to put it back yet.
Signal Meter only shows 3G, but Settings/Status shows HSPA or HSPAP (+) (see screenshots)
I think the SIM card you are going to use has to be active? I tried a T-mobile SIM and didn't get no signal. My AT&T SIM was. Let us know, please.
To undo what we just did, just dial ##72786# in dialer. My Tribute 5 is bad ESN for Boost Mobile, so I can't activate it to get rid of the HFA or get the hotspot feature back. I'm sure someone here will figure it out.
I did do an extra step with Shortcut Master, but I don't think it is required. Its just another way to set the Network Mode to GSM/WCDMA/ when Boost Mobile actually gives us the option without leaving it out. Since it is a 'Global' Phone
Post your screenshots of some Speed Tests. Lets see what this phone is capable of.
Click to expand...
Click to collapse
Everything went great for me except for one thing. I accidentally deleted the original apn settings before i could edit in the ones I would need for T-Mobile. i can recieve MMS and voice calls but have no internet. Is there a way for me to see insert the settings I need without having to download and flash the whole Kdz file and start over? When I dial ##72786#, nothing switches back to default so I have to do everything in reverse but cant un-delete what is gone. I really appreciate any help. Thanks alot
Finally got it to work. Getiing good signal (talk,text,& data) using Family Mobile sim card. Thanks for the tutorial. Awesome
Sent from my LGLS675 using XDA Labs
DareDiablo said:
I rooted and unlocked my LG675 Boost. After putting my SIM card (MetroPCS) in the phone still says Emergency Calls Only. What did I do wrong? I followed all the steps mentioned above. I even have the APN set to MetroPCS.
Click to expand...
Click to collapse
Hey. I wanted to help. If you successfully unlocked correctly, which it sounds like you did, you can use MetroPCS. However, you need to call MetroPCS first and let them know you are switching phones. You basically have to "ask for permission". This is why I hate Boost & Metro and never recommend the services to anyone. Metro will verify the imei is clean, then they will pair your sims iccid to the phone imei. After that your in business. Make sure you set your apn to get data working.
**If anyone needs this phone unlocked without root, contact me through pm's.
LG Tribute 5 roamimg issue
Thanks, I unlocked my lg Tribute 5. But there is one problem it doesn’t work in roaming, no network.
When I tried to look into roaming settings there is an error stating setting has stopped and am not able to change the roaming settings.
Please help.
Ls770
Is the same file for the ls770?
Why the file when I release it says ls675
I recently rooted mine with the hopes of opening up bands (I'm in Canada, once I hit the highway I have zero sevice while my husband and daughter still do, we are all with the same provider!)
However, the codes for accessing the service menu and/or engineer modes do not work. Apps give me messages that there is no engineer mode found...is this fixable or did I root for for nothing and need to find a new device??:crying:
It's not just rooting - the hardware has to have the appropriate software installed.
You need a script to put in in USB Diag Mode. If you follow the posts in this link you will get all the information you need to figure out how:
https://forum.xda-developers.com/zenfone-3/help/help-putting-phone-usb-diag-mode-t3571627
However, I will just tell you now you will not be able to unlock the LTE bands you need. I have tried.
I wrote the method in 1 II for your reference.
The Qualcomm Diagnostic Port command in Xperia 1&5 is as follows.
(setprop sys.usb.config rndis,eng_mode,adb)
And use the EFSTOols.exe program.
It's easier than I mk2.
Screenshot is
1&5 and 1 MK2
Hello Xperia users! In the meantime, I finally solved the VOLTE problem! I approached Qualcomm's diagnostic port-active-efsExplorer and solved the problem by inserting a VOLTE profile from my carrier
Sorry, this is Korea and I am Korean.
However, I will write down the method in English.
Unlike previous 1&5, Qualcomm's diagnostic port cannot be opened.
opening command
I don't even know. I don't think so.
So it's a little different from before.
I tried to force it open.
debugging connection
Open the Command Proposal window.
adb shell input
su input
Do you want to allow shell on your phone?
prompt acceptance of permission
Then the $ shape changes to #.
Now
setprop persist.usb.eng 1
Copy paste entry. Please enter
And you're gonna be out there during tethering.
In My Computer Item
View Device Manager.
Please turn debugging back on.
Of course, no access.
If you turn on debugging again,
I've already set it up, so it looks like that.
Among them, there is a product model named XQ-AT52.
There are four yellow exclamation points in total.
Manually update driver Press [port] to list the manufacturers
It's called Qualcomm hs-usb-diagh and 9091. with this
I need a manual update. gogo
Now run the EFS Express.
Press 0 on the ROW and OK.
(ROW or SF_Default)
Oh, it takes a long time. I thought it stopped.
It opens if you stay still. LOL
It's open. How nice to see you here!
I am the Korean telecommunication company EFS file extracted from xperia1.
I used it. If you need VOLTE,
XPERIA1 (Modem).Extract from SIN file
I will use the Korean communication file.
Just drag it and put it in a folder.
v check and Yes
There'll be folders that don't exist while you're pulling them in.
Then make it and put the file in.
In the folder where you can view this red file,
Drag and drop the file twice.
The reason is that once you do it, you just go in.
The red file is not updated.
That's how the numbers at the back change when you renew.
So make sure to put it in twice.
Files beginning with NV do not have folders.
Put it on top.
It's over now!
Volte Success ^0^ About IMS
VOLTE OK
Confirm Video Calls
It was such a hard time for me!
I was sad because I couldn't get help.
With 5G mobile phones in 2020,
It was terrible to be on the 3G phone.
If there's someone like me,
This information will help you a lot.
Finally, Marktu
Buy! Buy two! I love it.
Interesting. I wonder if the OpenDevice Modem on AOSP works without that Hack in the same Way. Would be cool to know... Pixel Experience for Example enabled VoLTE, Wifi Calling and Video Calls over Carriers on My Xperia 5 without any additions or extra work. It detects the SIM and loads the needed Configs for it on the Modem. Pretty handy hack from the SONY Community to get extended functionality over AOSP or GSIs
Xiaomi Qin F21 Pro with US Bands
LTE Bands 2, 4, 12, 13, 17, 66, 71 as provided by the US Qin F30 Kosher.
Things you need:
Windows PC (as far as I know this only works on Windows)
Qin F21 Pro with unlocked bootloader and TWRP installed.
See: https://forum.xda-developers.com/t/tools-mod-scripts-mlgmxyysds-qin-f21-pro-unlock-tool.4368277/
(This can be a headache, there are probably better ways to do this.)
See: https://forum.xda-developers.com/t/...om-firmware-root-playstore-certified.4405615/
You only have to follow this tutorial up to the point of installing the boot_2.img in TWRP you do not have to root if you don't want to. I do believe most of us with F21's probably have already done this entire tutorial though.
SP Flash Tool: See tutorial above, it comes with it.
ADB (and please know how to use it): https://www.xda-developers.com/install-adb-windows-macos-linux/
The files I provide with this link Which are: F30 files (from my purchased F30), my edited scatter file to show new partitions, SN Write tool with provided Database files.
https://www.mediafire.com/file/3fba0dugos3lkdv/F30_US_LTE_Bands_Package.zip/file
I WILL NOT BE HELD RESPONSIBLE IF YOUR PHONE DOESN'T BOOT, SOFT/HARD BRICKED! THIS TUTORIAL IS TO DO AT YOUR OWN RISK!
GUIDE:
1. Write down your F21's Original IMEI, Wifi Mac Address, and Bluetooth Address.
Go into your phone settings and scroll all the way down to "About Phone".
Here you will find your IMEI, Device Wi-Fi MAC address, and Bluetooth address.
WRITE THESE DOWN!!!!!!!! YOU NEED THESE LATER!!!!!!! I even included a txt file for you to do it in!
We want to write these down because we will need them for the SNwriter tool later.
2. Turn off your phone and boot into TWRP, you can do this by holding the heart/owl key (top left) and the * (star, bottom left) key, you will see the Douqin Logo. Keep holding until TWRP boots.
3. Plug the F21 into computer and TWRP will allow ADB connections. We are going to use ADB to pull/backup your modem and identifier files in case you mess up =)
DO NOT SKIP THIS STEP. WE WILL BE OVERWRITING THESE FILES - THEY CONTAIN THE IDENTIFIERS THAT YOU WROTE DOWN ABOVE.
Even though we will no longer be using these files, they are original to your phone, and I think its incredibly important to have a back up. I even included an empty folder for you to put them in!
Use the following ADB commands:
adb pull /dev/block/by-name/nvdata
adb pull /dev/block/by-name/nvram
adb pull /dev/block/by-name/nvcfg
Now find those files and put them some where safe!!!
(You can also use TWRP and copy the files, and put the on a USB stick or maybe some where else on the phone)
4. Turn off the phone again, you can do this from TWRP by going to Reboot and chosing Power Off.
5. Open SPFlash Tool and load the scatter file provided from my files "MT6761_Android_scatter - edited.txt". This will add the NVData, NVRam, NVcfg partitions to flashable partitions.
5a. Uncheck all the boxes we don't need and only check off nvcfg, nvdata, nvram, and md1img_a. These are the ONLY partitions we are flashing. (They should already be selected! BUT SO WILL THE PRELOADER, UNCHECK PRELOADER, I had to include it in the folder for the flashing to work, but we do NOT need to flash it!)
5b. Click the "location" portion of each row and find the corresponding file from the files I provided. (This should already be done!)
5c. When you got everything set up, click the Green Arrow Download button. With your phone turned off, hold the BACK button (top right) and plug it in. It will flash these files to your phone. KEEP YOUR PHONE OFF FOR NOW.
6. Open SNwrite tool on your computer, make sure ComPort says USBVCOM, and Target Type says Smart Phone.
6a. Open the System Config button and make sure ONLY IMEI, BT Address, and Wifi Address are checked off in the "Write Option" (top left) section.
6b. In the DataBase File section (at the bottom) and make sure "Load AP DB from DUT and Load Modem DB from DUT are checked.
6c. Click on the MD1_DB button and select the "MDDB_InfoCustomAppSrcP_MT6761_S00_MOLY_LR12A_R3_MP_V88_3_1_ulwctg_n.EDB" file located in the AP DB Base\\MT6761 folder (within SNwrite folder).
6d. Click on the AP_DB button and seelect the "APDB_MT6761_S01__W1947" file located in the AP DB Base\MT6761 folder (within SNwrite folder).
6e. Click Save and go back to the main window, click on "Start" and a new window will pop up. Remember how I told you to WRITE DOWN all of these from your F21? This is where we need it.
IMEI_1 = your original IMEI.
BT Addr = Your Bluetooth Address (no colons!)
Wifi Addr = Your Wifi MAC Address (no colons!)
6f. Before you click OK be sure to have your phone at the ready. You will need to, just like with SP Flash Tool, hold the back button as you plug it in! Click OK and plug in your phone with the back button held. Wait for the bar to progress and the green PASS signal to light up.
6g. When its done, your original identifiers will be flashed to your phone! Another window may pop up making you think you have to flash again, just close it as long as you saw that Green PASS signal you are good.
7. TURN ON YOUR PHONE AND ENJOY US LTE BANDS!!!!!! 2, 4, 12, 13, 17, 66, 71
These cover most of T-mobile and Verizon users!
Go back into your phone settings as in Step 1 and make sure your original IMEI, Wifi Mac Address and Bluetooth Address are there.
To confirm the bands, use the phone dialer and type:
*#*#3646633#*#*
This will take you into engineering mode (use at your own risk, don't mess with anything!) and click on Band Mode. Scroll thru the bands and you can confirm which ones are active. As far as which ones are currently being used, I am unsure of how to do that just yet. Will update when I know (was told there are apps that might be able to do this).
-----------------------------
Things to note:
AGAIN: BE SURE TO BACK UP YOUR FILES and write down your IMEI, Wifi MAC ADDRESS and BLUETOOTH ADDRESS! I cannot state this enough.
If you do not do the SNwrite tool (section 6 of the steps) you will have DUMMY made-up identifiers, and technically those will work for a while.. but you don't want to have the same ones as others, so please do section 6.
I cannot help you with unlocking your bootloader, that part can be easier and the tool I linked was not fun. There are apparently much easier ways, please look into them.
If you can unlock your bootloader, and install TWRP you can do the rest of these steps easy!
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If you would like to buy me a coffee: https://ko-fi.com/storymode
I'd like to thank:
Jbazt_katuforzs (XDA forums) for the Unofficial Qin F21 Pro firmware tutorial.
Sense_101 (XDA forums) who I couldn't have done this without, they helped me with learning ADB commands and knowing which files I would need to get this done.
mosheys (XDA) who told me about SNwrite tool.. which I knew about, but couldn't work before, and gave me the motivation to try again, really made this all come together.
jbriones95 (Reddit) who got me into Dumbphones and introduced me, through his videos, to the F21 Pro. The perfect phone for me!
eitokai (Reddit) who worked on tinkering with the F30 and made me believe I could do it too, and make progress - and everyone they thanked helped too!
Quick shout outs to Highpowers23 (Reddit), and 154FAviator (Reddit).
Lots of other random tutorials online where other people were trying to do similar things with their phones!!
-edits-
4/25/23: Fixed an issue where SPFlash tool was giving an Invalid Preloader error on Step 5a. I had to add the preloader file to the supplied download, but we do NOT need to flash the preloader. Edited step 5a to reflect change. Thanks to XDA user mosheys for pointing it out =)
amazing. looking forward to trying this out later tonight.
It worked! Amazing. Thank you for putting the time in to write this up.
Wow, and I always thought that network bands are hardware that can't be added...
How's that possible?
Hi
I have been using this flashed US Bands thing on my phone, and I notice there's few places that my phone just gets thrown off service, I can be in middle of a call and the call ends, etc
Also I miss a lot of calls due to it getting thrown off service in certain areas. (not talking here in basements etc, just random on street)
Anybody else experience such issues?
DEV845 said:
Hi
I have been using this flashed US Bands thing on my phone, and I notice there's few places that my phone just gets thrown off service, I can be in middle of a call and the call ends, etc
Also I miss a lot of calls due to it getting thrown off service in certain areas. (not talking here in basements etc, just random on street)
Anybody else experience such issues?
Click to expand...
Click to collapse
I'm sorry I haven't had any issues at all except for one time when I ran out of data unknowingly. What phone provider are you with? You might have to manually add their APNs to your settings.
shulemf said:
Wow, and I always thought that network bands are hardware that can't be added...
How's that possible?
Click to expand...
Click to collapse
That's what they'd like you to believe! It can be mostly true, but since the F21 has a US clone, the F30, I was able to make it work via their files. Next thing I really want to try is adding more bands if possible. But it involves hex editing perhaps which I'm no good at.
CatStoleTheCrown said:
That's what they'd like you to believe! It can be mostly true, but since the F21 has a US clone, the F30, I was able to make it work via their files. Next thing I really want to try is adding more bands if possible. But it involves hex editing perhaps which I'm no good at.
Click to expand...
Click to collapse
If you figure this out . Love my f21 so much since I used your guide
Can someone post a step by step video on how to do this
Will this work on f22 pro also?
Hi there! Thanks so much for the guide and the files
I followed all your instructions with my brand new F21 pro unlocked that I got from aliexpress, 64/4 version. when the phone arrived, it was already unlocked and had TWRP installed. So I went to follow your tutorial from that point. I specifically bought this phone to use on Verizon for a family member that does not use smart phones so this would be big upgrade for them, since most of the options for Verizon basic phones are bad choices.
Anyway, I consider myself fairly intelligent and computer savvy, I followed your instructions exactly and got no errors both times. first, I got the green checkmark after downloading the files then I did the imei writing I got the green PASS with 0 errors
so I go to turn the phone on, the system now appears "kosher." the Chinese play store is gone, etc. the system is telling me there is a software update which I ignore... when I plug the SIM card into the phone, I am not getting any cellular reception, however the phone does see that sim belongs with Verizon. my phone number shows up in the about section, as well as the original imei and Mac and bluetooth address. so it appears my writing to the phone was successful, but for some reason the bands are not active. I can do wifi calling with Verizon but not over cellular.
I really dont think I did anything wrong but I do have a question was the sp flash tool supposed to only say "download" in the drop down box from the first step?? was it supposed to be install and format??? I left it on download because I wasn't instructed to change anything and went about my business but I am just trying to figure out what went wrong.
again, I want to reiterate, the Verizon employee said they did not see the imei I provided to them with my current sim already in the phone, so why could they not see the f21 pro with original imei and lte bands after your guide? was he lying because they do not want me to use this phone? he asked me if the phone was Samsung and I just said yeah, he was foreign and I didn't feel like explaining.
really trying to figure out what went wrong here. it's frustrating that you can get it to work but I can't. I successfully copied the imei, Mac and Bluetooth address so I dont think that is it. when I go to look at the bands in the developer menu, I do not see the bands you mention with a check box next them. does that mean they are not active??
I really dont want to have to return this phone or sell it because it was a gift and it is actually quite nice for the money. so I put the SIM card back in the old basic phone (sonim xp5) and naturally, it is working as it should... this is a LTE sim and both phones use LTE, so I do not see what the problem is
is there something that must be changed manually in the cellular settings after sim insertion such as LTE/ CDMA only or something like that? again I am on Verizon and I have decent coverage where I am trying this.
thanks
it worked ! Thanks for sharing this guide !
TweakBox Tutuapp
moogpunk said:
Hi there! Thanks so much for the guide and the files
I followed all your instructions with my brand new F21 pro unlocked that I got from aliexpress, 64/4 version. when the phone arrived, it was already unlocked and had TWRP installed. So I went to follow your tutorial from that point. I specifically bought this phone to use on Verizon for a family member that does not use smart phones so this would be big upgrade for them, since most of the options for Verizon basic phones are bad choices.
Anyway, I consider myself fairly intelligent and computer savvy, I followed your instructions exactly and got no errors both times. first, I got the green checkmark after downloading the files then I did the imei writing I got the green PASS with 0 errors
so I go to turn the phone on, the system now appears "kosher." the Chinese play store is gone, etc. the system is telling me there is a software update which I ignore... when I plug the SIM card into the phone, I am not getting any cellular reception, however the phone does see that sim belongs with Verizon. my phone number shows up in the about section, as well as the original imei and Mac and bluetooth address. so it appears my writing to the phone was successful, but for some reason the bands are not active. I can do wifi calling with Verizon but not over cellular.
I really dont think I did anything wrong but I do have a question was the sp flash tool supposed to only say "download" in the drop down box from the first step?? was it supposed to be install and format??? I left it on download because I wasn't instructed to change anything and went about my business but I am just trying to figure out what went wrong.
again, I want to reiterate, the Verizon employee said they did not see the imei I provided to them with my current sim already in the phone, so why could they not see the f21 pro with original imei and lte bands after your guide? was he lying because they do not want me to use this phone? he asked me if the phone was Samsung and I just said yeah, he was foreign and I didn't feel like explaining.
really trying to figure out what went wrong here. it's frustrating that you can get it to work but I can't. I successfully copied the imei, Mac and Bluetooth address so I dont think that is it. when I go to look at the bands in the developer menu, I do not see the bands you mention with a check box next them. does that mean they are not active??
I really dont want to have to return this phone or sell it because it was a gift and it is actually quite nice for the money. so I put the SIM card back in the old basic phone (sonim xp5) and naturally, it is working as it should... this is a LTE sim and both phones use LTE, so I do not see what the problem is
is there something that must be changed manually in the cellular settings after sim insertion such as LTE/ CDMA only or something like that? again I am on Verizon and I have decent coverage where I am trying this.
thanks
Click to expand...
Click to collapse
Hey there,
The fact that the bands aren't checked off in engineering mode indeed means that the bands aren't active (I did it and the bands showed up) you should of course redo the setup carefully in case you might have missed a step.
About Sp flash tool all you have to press is the green download arrow at the top of the window. And remember to make sure to deselect the preloader partition.
And not sure if I understood you correctly but you mentioned that after you finished the process you got the full kosher version on the phone, that shouldn't be the case because we are only copying the necessary partitions from the f30 for the service to work(I might have misunderstood you on that last one).
Potential_Threat said:
Hey there,
The fact that the bands aren't checked off in engineering mode indeed means that the bands aren't active (I did it and the bands showed up) you should of course redo the setup carefully in case you might have missed a step.
About Sp flash tool all you have to press is the green download arrow at the top of the window. And remember to make sure to deselect the preloader partition.
And not sure if I understood you correctly but you mentioned that after you finished the process you got the full kosher version on the phone, that shouldn't be the case because we are only copying the necessary partitions from the f30 for the service to work(I might have misunderstood you on that last one).
Click to expand...
Click to collapse
I had prepared the phone for the user I bought it for thinking I did al the steps right. when I realized the phone wasnt working, I re did the tutorial. it wiped all the apps and work I had previously done on the phone such as adding the play store, certification, etc and various apps. it was ready to go... so when I did the tutorial again, starting at the step where you load the F30 files, the phone appeared "kosher" when I flashed it and was once again app less... that is what I meant. it looked like I had started over.
was there anything about the bootloader or the unlocking process that may have not been done properly by the seller of the phone? Again, the phone arrived to me already unlocked and with TWRP installed so I skipped all those steps thinking I wouldn't need to do them.
what did I do wrong if I erased all the apps and the kosher version got installed and wiped the stuff I had already done when I tried to redo the process ?? I'm literally just following the instructions on a brand new phone.
the only thing I could think that I did wrong was skip the unlocking process but I only did that because I assumed the phone was already unlocked. I would assume it's unlocked if TWRP was already installed.... am I wrong ?
moogpunk said:
the only thing I could think that I did wrong was skip the unlocking process but I only did that because I assumed the phone was already unlocked. I would assume it's unlocked if TWRP was already installed.... am I wrong ?
Click to expand...
Click to collapse
Do you mean you bought the version with the Google play store ("unlocked") and that's why you bypassed the other stuff?
moogpunk said:
I had prepared the phone for the user I bought it for thinking I did al the steps right. when I realized the phone wasnt working, I re did the tutorial. it wiped all the apps and work I had previously done on the phone such as adding the play store, certification, etc and various apps. it was ready to go... so when I did the tutorial again, starting at the step where you load the F30 files, the phone appeared "kosher" when I flashed it and was once again app less... that is what I meant. it looked like I had started over.
was there anything about the bootloader or the unlocking process that may have not been done properly by the seller of the phone? Again, the phone arrived to me already unlocked and with TWRP installed so I skipped all those steps thinking I wouldn't need to do them.
what did I do wrong if I erased all the apps and the kosher version got installed and wiped the stuff I had already done when I tried to redo the process ?? I'm literally just following the instructions on a brand new phone.
Click to expand...
Click to collapse
And now with the kosher version, are you following the steps to fully unlock it first?
nemoslumbers said:
And now with the kosher version, are you following the steps to fully unlock it first?
Click to expand...
Click to collapse
I admit I skipped the unlocking part because I bought the "google unlocked world" version from aliexpress, and so I assumed it was done. and in the developer menu it said the phones boot loader was already unlocked... and the phone had TWRP already, so I assumed in order for TWRP to be there, it was unlocked already.
so I guess you are telling me that I shouldn't have skipped it because it wasn't truly unlocked then? okay, I will try it again.
I do not have the kosher version, I was referring to my f21pro phone after flashing with scatter f30 file.
also I just realized that when I was trying to unlock I was holding the wrong two "top buttons" I thought it was the owl button and the back button, not the camera button and the back button
moogpunk said:
yes. I skipped the unlocking part because I bought the "google unlocked world" version from aliexpress, and so I assumed it was done. and in the developer menu it said the phones boot loader was already unlocked... and the phone had TWRP already, so I assumed in order for TWRP to be there, it was unlocked already.
so I guess you are telling me that I shouldn't have skipped it because it wasn't truly unlocked then? okay, I will try it again.
I do not have the kosher version, I was referring to my f21pro phone after flashing with scatter f30 file.
also I just realized that when I was trying to unlock I was holding the wrong two "top buttons" I thought it was the owl button and the back button, not the camera button and the back button
Click to expand...
Click to collapse
Maybe give the two top buttons a try before trying the full unlock route? Only a suggestion! I also got the google unlocked world version and was going to try putting all of this on here this weekend. Hoping we don't actually have to go through the full unlock process and maybe it was just the wrong button combo!
nemoslumbers said:
Maybe give the two top buttons a try before trying the full unlock route? Only a suggestion! I also got the google unlocked world version and was going to try putting all of this on here this weekend. Hoping we don't actually have to go through the full unlock process and maybe it was just the wrong button combo!
Click to expand...
Click to collapse
I've read some conflicting reports about which buttons it's supposed to be. The actual readme says it's the top two buttons (Owl+back) and someone else, an administrator here actually, posted a photo circling the #+back button.... and someone liked that post assuming it was true
also, someone else said you can only get into TWRP by holding the Star and Owl button when the phone turns on then you have to immediately press the up and back button to boot into TWRP... which isn't entirely true... all you have to do is hold Star+Owl button to boot into TWRP...
I will admit I am new to the world of modding phones but not modding electronics which is why I felt confident enough to take on this project. I have modified many iPods with rockbox in my day and done physical modifications. I find this fun but it's teetering on extremely frustrating.
I am going to have to do the entire unlock process from the very beginning because I don't have any other choice, otherwise I am left with a phone I cannot use on Verizon. it will be waste of ~140usd. not the fault of the aliexpress seller, just poorly written instructions and dumb windows compatibility issues.
I cannot get the phone unlocked because I cannot get my computer to recognize the phone via usb. no amount of button combinations are letting my windows computer see the phone so I cannot unlock it.