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Hi to all, I'm writing here because I had my first problems with my v970 (with etotalk rom). This evening I checked my mobile and I found that none of the sim was active (I was not in airplane mode) and I could not activate them, as if they were not in their slots. Meanwhile the upper part of the device began to heat up, so I tought it could be an antenna/receiver problem. I almost forgot to say that I installed Truecaller (deleting Contapps) and updated facebook and few others apps less than one hour before the event, but I already uninstalled them to exclude some of the possible causes. I'll gladly listen to any advice. Thank's in advance. GL
Restart, and see if it continues.
Already tried a lot of times, with or without sim cards. I also noticed an abnormal use of battery.
When did the problem start? What did you do before it started? Does your cellphone always have no signal, or does it come & go (sometimes SIM works, sometimes it doesn't)? Have you checked your APN settings?
post-mortem said:
When did the problem start? What did you do before it started? Does your cellphone always have no signal, or does it come & go (sometimes SIM works, sometimes it doesn't)? Have you checked your APN settings?
Click to expand...
Click to collapse
The problem started yesterday and I never experimented It till now. As I Said, before I encountered It, I updated some apps from the market and I changed the default caller manager (should I call It in this way?) with Truecaller. I also deleted my sim contacts
. I can't check apn because there are no apns to check (Android shows me the voice "mobile networks" but I can't select it
Update: I tried to restore the original rom, but the problem persists. I also made a check with the recovery, and it shows me that the device cannot detect sim cards. I begin to think that it's an hardware problem (ouch). Am I right?
What did you do in recovery that checks SIM cards? Are you talking about CWM recovery?
post-mortem said:
What did you do in recovery that checks SIM cards? Are you talking about CWM recovery?
Click to expand...
Click to collapse
Nope, it's the faulty recovery that etotalk sent me with the phone. I would like to install the cwm and flash another rom, but I'll leave that as the last option
If the recovery they sent you is faulty, then what good is it? If there's a custom recovery available for your phone, you might as well go with it, not that it'll solve anything by itself.
You might try inserting some kind of shim along with the SIM card to see if the extra pressure help make contact with the leads. Careful, of course, that whatever you stick in there doesn't stay behind.
post-mortem said:
If the recovery they sent you is faulty, then what good is it? If there's a custom recovery available for your phone, you might as well go with it, not that it'll solve anything by itself.
You might try inserting some kind of shim along with the SIM card to see if the extra pressure help make contact with the leads. Careful, of course, that whatever you stick in there doesn't stay behind.
Click to expand...
Click to collapse
I know about the recovery, but I was trying to don't invalidate the warranty (as if I'll ever use it...). Now I'm charging the phone, it's already the third time today...
Aw, heck. If you've got warranty, just send it in.
post-mortem said:
Aw, heck. If you've got warranty, just send it in.
Click to expand...
Click to collapse
Yep, I've got warranty, but sending it in China will cost me almost as much as buying a new one
Ok, I flashed a recovery and a custom rom, but nothing happened.The signal is still absent and the antenna heats up the same way as before. I tried to enter engineer mode and it shows me messages as "com.android.internal.telephony.CommandExcepti on: RADIO_NOT_AVAILABLE", "3G off. Cannot set", ecc... It also shows me "invalid IMEI" if I try to look at it and I cannot change it back with the AT +EGMR command (it says "Radio on" and "SIM State: ABSENT", altough the SIM card is in its slot).
I think you have to crack the case.
ArcheoGian said:
Ok, I flashed a recovery and a custom rom, but nothing happened.The signal is still absent and the antenna heats up the same way as before. I tried to enter engineer mode and it shows me messages as "com.android.internal.telephony.CommandExcepti on: RADIO_NOT_AVAILABLE", "3G off. Cannot set", ecc... It also shows me "invalid IMEI" if I try to look at it and I cannot change it back with the AT +EGMR command (it says "Radio on" and "SIM State: ABSENT", altough the SIM card is in its slot).
Click to expand...
Click to collapse
Hmmm... if your phone is reporting invalid IMEI numbers then I would try first to get that working as it should. Read this tutorial and re-write your IMEI numbers.
Then I would try the latest stock ROM, which is available on ZTE support website. Here is the direct link to the ROM.
If your phone still doesn't work after that, then I'm afraid you have a hardware problem.
I have had the telephone for more than one month with no problem. Trying every ROM made by Bruno with no problem at all with signal, but...
About 4 days ago, I started suffering exactly the same problems stated by ArcheoGian. I have tried everything (installing older Roms, rebooting, changing SIMs from 1 to 2, etc.) but unfortunately with no success. I just have to try to install the original ROM, but I supose it will be the same.
Afer a few reboots, I can make the telephone to search for a network, it founds it, it connects, it transfers data, I can make calls, but ramdomly (can be after 30 seconds, 30 minutes or maximum one hour) it disconnects and the red X of death (Xbox 360 times ) appears on top of the screen.
I can try to go and return from airplane mode, or search for networks that it won't re-connect.
I fear it can become a typical problem for this phone.
I am "delighted" to send it back to China and wait for two months to get it back (after explaining it to the seller and so on). Fingers crossed
@prinxo: did you buy it from eto...k? (I don't know if I can write the entire name of the seller)
Update: I tried everything it was told me (except to crack the case, at least not yet...), my last hope is to manually insert the IMEIs inside the data folder. There's just one problem: none of the methods suggested in the link posted by bcgngm works on my phone, so I need to generate the IMEIs whit my pc (I couldn't open the exe with windows 7, I'll try with win xp in a while, otherwise I have to ask someone to create it for me).
ArcheoGian said:
@prinxo: did you buy it from eto...k? (I don't know if I can write the entire name of the seller)
Click to expand...
Click to collapse
No, I bought it from another seller at Aliexpress.
As I thought: I tried to re-install an original ROM, and everything remains the same. I thought I was successfull but after one hour the phone disconnected itself from the network. After that moment, I need about 3 re-boots to get signal again and it lasts for just a few minutes.
At this point, I would disregard a software problem.
Happy happy to have to send it back to China.
ArcheoGian said:
Update: I tried everything it was told me (except to crack the case, at least not yet...), my last hope is to manually insert the IMEIs inside the data folder. There's just one problem: none of the methods suggested in the link posted by bcgngm works on my phone, so I need to generate the IMEIs whit my pc (I couldn't open the exe with windows 7, I'll try with win xp in a while, otherwise I have to ask someone to create it for me).
Click to expand...
Click to collapse
Why do you say it is not working? My preferred method is to use the adb commands (and for that you have to install Android SDK). Don't forget that when you type the commands there is no output message on the screen. The phone has to be restarted so that changes take effect.
bgcngm said:
Why do you say it is not working? My preferred method is to use the adb commands (and for that you have to install Android SDK). Don't forget that when you type the commands there is no output message on the screen. The phone has to be restarted so that changes take effect.
Click to expand...
Click to collapse
The third and the fourth ones are the only methods to restore IMEI I didn't try, just because I never used sdk and adb (and I'm not sure to be able to use them). I followed the others options (I also created the IMEI file with the russian program), but it continues to show me the "invalid IMEI" message. Can you help me, maybe showing me a good walkthrough?
This ADB Tutorial looks easy to follow. Check it out!
This will be the place holder on the procedure to flash the Samsung Galaxy Note 2 to Boost Mobile.
In regards to respect and response to Trim**
If you brick your phone, it is not my fault. I will not take any liability for your stupidity; and lack of patience. If you want to make a donation to my
fund, then I might be able to help you.
Please have patience and understand the concept on which I will explain to you.
Tools:
--------------------------------------------------------------------------------------------------------------
4 hours or less depending on your willingness to read the manual in its entireity (and the ability to overlook spelling and grammar errrrors)
WINDOWS XP PRO with dot net 4.1 and service pack 3
If you do not understand the terms of this paper you should stop immediately and seek professional help or spend another 2 hours learning the terms
The members I menitioned above are responsible for the research and if you lookup there posts you will find the files!!!
SAMSUNG DRIVERS FOR YOUR PHONE
Snagit / or you will need to manually copy the screen shots.
ODin3 v1.85
The factory ROM sph-l900_spr_L900VPALJ1_L900SPTALJ1_Original.zip (file name you need to download from reputable source)
GalaxyNote2RootSprint.zip
RootExplorer.apk
BusyBOX
2 boost mobile phones (in case you f**kup you can revert back without calling boostmobile)
My donors were a incognito and a samsung factor (incognito was donor, factor was there to fix error 16)
DFS 4.0.1.1
CDMA workshop 2.7
QPST 378
QXDM 03.09.19
------------------------------------------------------------------------------------------------------------------
Tip 1: Root your phone so you can find the MSL!
Flash the GalaxyNote2RootSprint.zip file as it is VERY important that later on you will need root privelleges to remove spy software.
Look it up as I could easily take up 2 pages of writing to answer how to root your phone, so to keep it simple... Read up using the files I
explained above within the tools section.
Tip 2: Reset the phone everytime you f**k up. Do not proceed if you mess up. START OVER!!!!
go to dialpad and type in ##786#
Tip 2: Create the template:
Gather your (SPC/MSLD, MEID, DEC, ESN, PRL, and CAVE if possible) put them into a notepad.
Tip 3: This is no way even close to how you flash an EVO! So don't go looking at that method as it will mess you up.
Tip 4: Never change your MEID until last!!! If you do it before, your phone will reboot and you will be locked out again!
Tip 5: 32bit passwords are BS and they seem to change each time you switch phones, so do not think they are the same as it takes 20 minutes before boost
unlocks your account for the next / new phone to even browse.
Now without further delay lets begin.
---------------------------------------------------Galaxy Note II L900 Flash from sprint to boost manual -------------------------------------
----------------------------------------------------------Donor Segment ---------------------------------------------
Install DFS, QPST, QXDM and workshop 2.7
Get your sanyo incognito (donor) <--- I hate all others, and copy NV items 465,466,1192,1194, then copy NAM1, and NAM2 using workshop 2.7. Make sure you put
the code of SPC in as it will not work in regards to copying the NV items and NAMs mentioned earlier.
Go to DFS and connect the Donor to the proper port and take screen shots of all sub tabs under the programming tab below. Remember to send the password and
passcode so that you can gather all info without delay.
Now type go into QPST and service and programming and connect your phone there as well and take screen shots of all infor there and label accordingly.
-Now if you did everything above you have all you need and you now may turn off the donor and pull battery out and store it. Never turn it back on again!!
---------------------------------------------------------End Donor Segment -----------------------------------
----------------------------------------------Begin Flash -------------------------------------
Now connect your Galaxy Note II L900 (L900) and type *#PATI#
Now unplug the USB from the computer and plug it back in. (see now it should recognize properly now)
Now do the same for QPST (If you have errors connecting to QPST you need to change PRL to 61009 then something random after that but go back to 61009 after this, you can change your PRL using DFS)
Next open up DFS and then transfer all information you screen copied from the donor to your note.
Now reset using DFS
Next go into QXDM and issue these commands:
password 01F2030F5F678FF9
RequestNVItemRead meid
RequestNVItemWrite meid 0x00A00000000000 < MEID/HEX ID from donor phone
RequestNVItemRead meid
RequestNVItemRead esn
RequestNVItemRead scm
Write SCM 0x2a
Now close QXDM
Open Worshop 2.7 and apply all NV items and NAMs!
Now you are all set.
If you get error 67 please go back to DFS and rewrite the values.
Once you get it perfect you can simply stop the nagging activation codes using:
root explorer "paid version" to rename the file "/system/app/SprintSyncMLSvc.apk" to "SprintSyncMLSvc.apk.bak"
If you also want to stop the nagging system update message, just stop google framerwork services. "remember to restart when you go to google play" <-- google play depends on it.
Im reading this and had to ask a question. My gn2 was flashed only with one software dfs. I already knew my spc codes for donor and gn2 so all he had to do was read and copy. Your saying I basicly have to have many softwares to do a simple flash. The guy who did my phone is going to charge me 150 to learn how to flash to boost with that one program
Sent from my SPH-L900 using Tapatalk 2
shadricksimms said:
Im reading this and had to ask a question. My gn2 was flashed only with one software dfs. I already knew my spc codes for donor and gn2 so all he had to do was read and copy. Your saying I basicly have to have many softwares to do a simple flash. The guy who did my phone is going to charge me 150 to learn how to flash to boost with that one program
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
I learned on CDMA workshop and QPST/QXDM. I do not want to get off topic; but one day you will not be able to flash; because of some simple file/security blocking you. Like those of us that use QPST/Programming learned that DFS was a better choice to use AAA vs relying on the QPST modules.
How long until the reverse happens. I recommend having both skills and if you want to learn, I can teach you for $40.00 I think $150 is a bit steep but his time is worth what he says it is, as its his life... :0)
Hey, Im having an issue with a New Samsung Galaxy Note 2 phone. Im experianced with flashing various phones.
he flash went fine for talk and text, but i have no data due to hands free activation stoping my 3g service. During the handsfree activation 3G pops up showung me my AAA keys are correct, then disappears.
I even tried disabling the sprint ML and activation apks to no avail.
Is the only way to fix this is to activate it on sprint first?
Or does anyone know of a phone code to disable the handsfree activation?
I can guarantee you you do not have evdo set
And your AAA is not correct.
The not has 2 distinctly different AAA
and only the HA is the same
Sent from my SPH-L900 using xda app-developers app
Both my Unique AAA Passwords are input correctly, and the values are correct. They work fine in both my evo 3d and Epic. But the Note without activating it once, will not let my 3g connection exist.
I also activated 3 other note 2's that were used with no problem with working LTE (3g passthru). Mines is the only new one.
hawaiideveloper said:
I can guarantee you you do not have evdo set
And your AAA is not correct.
The not has 2 distinctly different AAA
and only the HA is the same
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
This is not an evo or epic
You should have 3 passwords. I have now done 8 galaxy note 2 phones.
I like you in the past thought the same. If you look at your data settings you will see cdma
Select it and it will begin saying your password is wrong
Reason for is because it is.
Connect to your DONOR not the evo or epic phone using DFS
Then take note of profile 0 and profile 1
As well as the AAA
If you would like I can do a teamviewer session with you and get your data working.
Just PM me 1st
Sent from my SPH-L900 using xda app-developers app
Despite your 3g icon being on. Do not trust that it is the phone bluffing
Sent from my SPH-L900 using xda app-developers app
Those values are taken from my Touch Pro 2 using cdma ws. the AAA Profile 1 info from the data edit screen and my Profile 0 info from NV 1192
I just PM'ed you.
Thanks for the help.
hawaiideveloper said:
Despite your 3g icon being on. Do not trust that it is the phone bluffing
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
I go into EVDO engineering and see my AAA key is passing and I've set the phone to CDMA only data mode (which used to work before for EVDO) and yet the phone only wants to stay in 1x and fail evdo authentication. I think it has something to do with the profile 1 variables or something. When I reset the phone, it disables profile 0 and pastes [email protected] into profile 1 and I can get that to connect over EVDO no problem with the 3G icon coming up, but that's just some sprint internal network with no internet access, so all I can do is hit an access denied website on the HA gateway and that's it. I have no idea why the boost mobile profile that used to work will now never connect. I've done multiple ODIN flashes and erased and restored NV and nothing...EDIT: And I've read and written NVITEMS but I'm pretty sure the necessary NVITEMS don't stick, even if you send both spc and password to phone before writing nvitems. Seriously getting out of ideas, especially since it used to work on this phone and now it doesn't.
Starting from scratch!
gotonull said:
I go into EVDO engineering and see my AAA key is passing and I've set the phone to CDMA only data mode (which used to work before for EVDO) and yet the phone only wants to stay in 1x and fail evdo authentication. I think it has something to do with the profile 1 variables or something. When I reset the phone, it disables profile 0 and pastes [email protected] into profile 1 and I can get that to connect over EVDO no problem with the 3G icon coming up, but that's just some sprint internal network with no internet access, so all I can do is hit an access denied website on the HA gateway and that's it. I have no idea why the boost mobile profile that used to work will now never connect. I've done multiple ODIN flashes and erased and restored NV and nothing...EDIT: And I've read and written NVITEMS but I'm pretty sure the necessary NVITEMS don't stick, even if you send both spc and password to phone before writing nvitems. Seriously getting out of ideas, especially since it used to work on this phone and now it doesn't.
Click to expand...
Click to collapse
Gotonull,
Simply start over and follow my instruction to the "T" and when you get stuck, you can PM me. I do recommend that you make a teamviewer session 1st then that way I can truly walk you through it.
Temporarily closing this until I get it sorted.
Hello everyone,
I come to you with a very strange case, which I have yet to find elsewhere on the web. I hope one of you guys can help me with this...
I'm trying to unlock my LG-p500 phone, I paid for an unlocking code and was ready to follow the instructions to unlock it. I was expecting for a window to pop after typing the first code (2945#*500#), but nothing happened, I tried to enter a different sim card from a different provider and it didn't displayed "phone restricted" as it was supposed to (according to instructions and different forums), but it simply displayed "No service" and "Emergency calls only". I also tried to type 2945#*71001# to get the menu but again... the phone didn't responded to any of these codes (I'm now observing that actually the phone does not respond to many of the secret codes of LG-p500 and Android as well, but it does responds to a number of them, such as *#*#4636#*#*)
Ever since then I've tried SO many things to work it out. I rebooted, unrooted, rooted again, formatted, recovered, installed custom roms, reverted to the original rom, software updated, I almost bricked my phone while trying to get this done but nothing seemed to work. I figured to try to get that menu in a friend's LG-p500 phone, unmodded in any possible way, and surprisingly the window to input the code still did not appeared and it didn't responded to any of the codes above.
It made me wonder of whether the provider had blocked the option of entering the codes, as me and her are with the same phone from the same provider, getting similar results.
I searched for hours for a solution to the problem but with no luck. I would really appreciate getting some help with this, as i'm totally clueless of what to do next. I will be very grateful for any response.
Much thanks!
Shay
Shuye said:
Hello everyone,
I come to you with a very strange case, which I have yet to find elsewhere on the web. I hope one of you guys can help me with this...
I'm trying to unlock my LG-p500 phone, I paid for an unlocking code and was ready to follow the instructions to unlock it. I was expecting for a window to pop after typing the first code (2945#*500#), but nothing happened, I tried to enter a different sim card from a different provider and it didn't displayed "phone restricted" as it was supposed to (according to instructions and different forums), but it simply displayed "No service" and "Emergency calls only". I also tried to type 2945#*71001# to get the menu but again... the phone didn't responded to any of these codes (I'm now observing that actually the phone does not respond to many of the secret codes of LG-p500 and Android as well, but it does responds to a number of them, such as *#*#4636#*#*)
Ever since then I've tried SO many things to work it out. I rebooted, unrooted, rooted again, formatted, recovered, installed custom roms, reverted to the original rom, software updated, I almost bricked my phone while trying to get this done but nothing seemed to work. I figured to try to get that menu in a friend's LG-p500 phone, unmodded in any possible way, and surprisingly the window to input the code still did not appeared and it didn't responded to any of the codes above.
It made me wonder of whether the provider had blocked the option of entering the codes, as me and her are with the same phone from the same provider, getting similar results.
I searched for hours for a solution to the problem but with no luck. I would really appreciate getting some help with this, as i'm totally clueless of what to do next. I will be very grateful for any response.
Much thanks!
Shay
Click to expand...
Click to collapse
The device's hidden menu is only accessible thru stock ROMs and the stock dialer.
shinobisoft said:
The device's hidden menu is only accessible thru stock ROMs and the stock dialer.
Click to expand...
Click to collapse
I figured that, that's why I've also tried to access that menu via an unmodified LG p500 phone, which probably still runs the stock rom but I couldn't access that menu through that phone as well.
I'm starting to conclude that my phone was already unlocked from the provider itself, and perhaps that is the reason why I cannot access that menu again.
Is there a way of assuring that my phone is unlocked? I figured that I can use other sim cards from other Israeli providers, I thought there were two types of locks (that's what they told me in customer service), so if I can use sim cards from other local providers, does it mean that I can also use the phone for sim cards from international providers as well?
Thanks!
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.
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!
-----------------------------
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.