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Redmi 5 Plus [vince] | LTE Advanced/4G+| LTE Carrier Aggregation Unlock Tutorial

It doesn't work. It only shows the '+' and your connection becomes slower.
Original thread: https://c.mi.com/thread-996850-1-1.html
Redmi 5 Plus is capable of LTE Advanced, but unfortunately it's software-locked for unknown reasons. I'll show you step by step how to unlock LTE+/4G+
You do everything at your own risk and responsibility!
1. Download needed files on PC https://drive.google.com/uc?authuser=0&id=1EGIDZ3eI_F-Lit5bh0HESR_oP1rMP6Em&export=download
2. Extract downloaded file
3. Install QPST
4. Launch QPST Configuration
5. 'Call' *#*#717717#*#* on your phone
5. Plug in your phone
6. Your phone should appear in QPST Configuration > If it doesn't, check in device manager if Qualcomm USB Composite Device driver is up-to date. If it isn't - let Windows search for an update.
7. In QPST Configuration go to Start Clients > Software Download
8. Click on Backup and make a backup just in case.
9. Click on Restore and browse file
9. Select unlock_CA_vincent.QCN you've extracted before
10. Click on Allow phone/file ESN mismatch
11. Click Start and wait till it says the process has been completed (shouldn't last more than a few seconds)
12. Restart your phone
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Yep LTE+ icon ahow on your system but not ca i test speed 4G max speed stuck around 40-60Mps normally 2CA is 100Mpbs++ and i see on network signal guru it's show LTE Not LTE2CA and i try anoter qcn file it's same
ON REDMI 5 PLUS CAN'T USE THIS METHOD FOR UNLOCK CA (in global version MEG7 and my country is thailand)
but redmi 5 plus support intrabrand CA in my country but not support interbrand like b1+b3 or b3+b8 you can check with network signal guru and show me a result @Ksarin112

Need root ?

dont use this method, not useful, yes, you get the lte+ signal, but yr dl speed doesnt change and your ping, esp in gaming, goes right up

How use?

Anyone knows where is the default location for backup, as I used this method and no changes in speed but the battery drain faster and I don't remember the default location, because in order to use this method I selected my download folder to update phone by the downloaded qcin file.

The model number in qcn file and the phone do not match. I have redmi note 5 indian varient

Can you post any screen?

[Guide] Unbricking P20

So I kinda bricked my phone when trying to go back from Beta 9.0 to Latest Official. So I decided to give some kind of guide to try and assist the people Who also got stuck. Beware that I couldnt get ADB to work as it kept complaining about drivers which I couldnt make work but it was due toe phone being bricked. If you can get into ADB and have TWRP already loaded then you can simply transfer the three files from below to your phone and follow this guide with the below three files. It works perfectly : https://forum.xda-developers.com/honor-9/development/tool-flash-official-firmware-recovery-t3769279
If you have the same issue as me then follow the following procedure :
I have the Dual Sim EML-L29C185 (How do I know this?) Well at first I didnt so I had to figure out. So let look at the following :
EML-L29 - Dual Sim Model
C185 - South African Region Model which you can get from the following post : https://forum.xda-developers.com/8-lite/how-to/huawei-regional-codes-t3740473
So now that you know the model number go to this site and type in the model number eg : eml-l29c185 and you will get a list of firmwares for your phone : https://pro-teammt.ru/firmware-database/?firmware_model=eml-l29c185&firmware_page=0
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Click on the file list and in the example below you will see 4 files but only need three. The EM09 and L29 have the same update.zip and same update_data_full_public.zip but different EML-XXX_hw_meafnaf/update_full_EML-XXX_hw_meafnaf.zip files so get the three files you need for your model.
Now download the Huawei Multitool from here : http://4pda.ru/forum/index.php?showtopic=759172&st=0#entry51396624
and The update.zip extractor from here : https://forum.xda-developers.com/showthread.php?t=2433454
We need to manually flash all the broken image files in the phone with the Multitool but the files we need to flash are inside the update.zip file and thats why need the extractor.
So unzip the update .zip file. Then point the extractor to the folder so you can extract the files needed by the Multitool.
The following Three files need to be flashed
System [Called System.img]
Boot [Called Ramdisk.img]
Recovery [Called Recovery_Ramdisk.img] make sure it is in the folder and rename it correctly. Mine was recovery_ramdis.img without the K so had to rename it otherwise multitool wont flash it]
You can also flash it manually without multitool with the following commands :
fastboot flash ramdisk ramdisk.img
fastboot flash system system.img
fastboot flash recovery_ramdisk recovery_ramdisk.img
Start your phone in Recovery mode : Switch off. Hold vol down and keep holding it and plug usb cable in. Or in TWRP reboot Bootloader.
Start multitool and click on the unbrick tab on top and follow the instructions. That worked for me.
After it was done I transfered the 3 downlaoded files to the phone and followed the procedure to make sure all 3 files are flashed because multitool only uses the update.zip file and i dont think it fixed all the region stuff but this procedure did :
https://forum.xda-developers.com/honor-9/development/tool-flash-official-firmware-recovery-t3769279

One more

[HELP] Moto G5 Plus XT1686 boot up failure

My 3 year old Moto G5 Plus running android 8 suddenly restarted two days ago and went into Start up failure. It no longer shows My product or IMEI number. It just shows potter 000000000000000 32GB P3B
Bootloader logs read " Start up failure. Your device didn't start up successfully. Use the Software Repair Assistant on computer to repair your device. Connect your device to your computer to get the Software Repair Assistant" written in red.
I have my IMEI and product numbers saved on my pc in a notepad file, but the LMSA software does not recognise my device to even try to rescue it. I want to retrieve files from my phone before attempting a factory reset.
On using the LMSA, it says "lmsa doesn't match appropriate firmware. you can try to select a firmware manually" but then it has no option to select anything manually. I have my phone previously registered on the software on my PC.
I have not rooted my phone, nor used anything other than stock android. My bootloader is locked. I cannot remember if I had Developer options selected or not, most probably not.
On trying to go to recovery mode it says the same message " Start up failure. Your device didn't start up successfully. Use the Software Repair Assistant on computer to repair your device. Connect your device to your computer to get the Software Repair Assistant"
When I connect the phone to the computer, it recognises it (I hear a notification sound) and under Devices it shows under Unrecognised as "Fastboot potter s"
I've never flashed my phone but would it be possible to recover the files in the internal storage of the phone by installing TWRP (in a non rooted, bootloader locked phone) without data loss?
How does it work?
Please help! I really need to recover my photos and notepad notes. Is there any way? Any software?
Please help! Please!

i have the same issue.
can someone help with that .
sharing screenshots of the same.
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i have the same issue too. ( xt1683)

I'm not responsible for what you do to your device.
Have you seen this post? https://forum.xda-developers.com/t/...d-as-qhsusb_bulk.3636457/page-9#post-76035108. Also read post # 223 about trying this on a Windows 10 machine.
Good luck.

roundaway said:
I'm not responsible for what you do to your device.
Have you seen this post? https://forum.xda-developers.com/t/...d-as-qhsusb_bulk.3636457/page-9#post-76035108. Also read post # 223 about trying this on a Windows 10 machine.
Good luck.
Click to expand...
Click to collapse
I tried this method and didn't work for me. but the device loads bootloader (not on blanck mode)

Question Please Help me to fix "no service" "no network" on my Nokia G20?

After reinstalling nokia G20 I can't make calls or connect data "without mobile network" even after entering IMEI with SN Write tools program. can someone provide me with the DB files or a backup of the NVRAM please?

ladinoest said:
After reinstalling nokia G20 I can't make calls or connect data "without mobile network" even after entering IMEI with SN Write tools program. can someone provide me with the DB files or a backup of the NVRAM please?
Click to expand...
Click to collapse
Please take it to Nokia Care!

Iam from Angola and we don't have Nokia Care center, till this date I've already spend one month searching and nothing can't help me please or someone give an alternative solution?

When I try to make call it show's "Radio disabled"

ladinoest said:
After reinstalling nokia G20 I can't make calls or connect data "without mobile network" even after entering IMEI with SN Write tools program. can someone provide me with the DB files or a backup of the NVRAM please?
Click to expand...
Click to collapse
How did you flash the device?

mvikrant97 said:
How did you flash the device?
Click to expand...
Click to collapse
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mvikrant97 said:
How did you flash the device?
Click to expand...
Click to collapse
I used the latest version of the Sp tools program.
extract files from zipped folder
I've unchecked the vendor_Custom_a file and changed the preloader file with the TA-3336 because with the TA-3165 preloader it freeze during boot.

mvikrant97 said:
View attachment 5728709
Click to expand...
Click to collapse
thanks!... but i don't own a box or dongle for this software so im searching a digital version of this to try

ladinoest said:
After reinstalling nokia G20 I can't make calls or connect data "without mobile network" even after entering IMEI with SN Write tools program. can someone provide me with the DB files or a backup of the NVRAM please?
Click to expand...
Click to collapse
You should always backup original rom before flashing.

I have these file below. Which one you need?

mvikrant97 said:
I have these file below. Which one you need?
View attachment 5728723
Click to expand...
Click to collapse
Sorry was rockie mistake, from now on i'll make sure to backup
these are the files i need:
nvram.bin
Preloader_t99653aa1.bin
wt_custom.img

ladinoest said:
Sorry was rockie mistake, from now on i'll make sure to backup
these are the files i need:
nvram.bin
Preloader_t99653aa1.bin
wt_custom.img
Click to expand...
Click to collapse
File attached!

mvikrant97 said:
File attached!
Click to expand...
Click to collapse
awesome many thanks for you patience, i'll work on this and give u feedback

Question Realme X7 Pro hard bricked error 0x99256658 Download not completed after flashing SP FLASH TOOLS

Hello.
I need help or if anyone was able to fix this error root failed me and SP Flash didn't detect the device after that I searched the internet for my error it gave me and it said it would detect it if I gave it : "remove all+download" I made a copy of security with PBRP of the important sectors of the phone but they are encrypted, when I rebooted the device again I got the error 0x99256658Download not completed.
Looking for information, I need a file called oppo_custom.img from the device but unfortunately I can't find it on the internet.
I wanted to know if anyone has that file or knows someone who could repair it online, even if you have to pay
And if someone was able to solve it, could you help me by telling me how, I currently have another phone in use but I don't want to lose this one.
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TOLL10 said:
Hello.
I need help or if anyone was able to fix this error root failed me and SP Flash didn't detect the device after that I searched the internet for my error it gave me and it said it would detect it if I gave it : "remove all+download" I made a copy of security with PBRP of the important sectors of the phone but they are encrypted, when I rebooted the device again I got the error 0x99256658Download not completed.
Looking for information, I need a file called oppo_custom.img from the device but unfortunately I can't find it on the internet.
I wanted to know if anyone has that file or knows someone who could repair it online, even if you have to pay
And if someone was able to solve it, could you help me by telling me how, I currently have another phone in use but I don't want to lose this one.
View attachment 5765767
View attachment 5765769
Click to expand...
Click to collapse
Remember that, usually, SPFT don't flash oppo_custom images, you should, need, firstly, edit the scatter file, where it names that partition, and set it from false to true, using some of your oppo_custom images, available on the ofp extracted ROM.
This was just a first attempt, just in case, one of those files can fix the issue.
Going to the next, as the probabilities to find, a specific modded oppo_custom image, specifically for your device, it´s unlikely, then you can pick up from some of the lot of them, available from the net, in case one of them can fix it. It doesn't matter for the model is coming from.

SubwayChamp said:
Remember that, usually, SPFT don't flash oppo_custom images, you should, need, firstly, edit the scatter file, where it names that partition, and set it from false to true, using some of your oppo_custom images, available on the ofp extracted ROM.
This was just a first attempt, just in case, one of those files can fix the issue.
Going to the next, as the probabilities to find, a specific modded oppo_custom image, specifically for your device, it´s unlikely, then you can pick up from some of the lot of them, available from the net, in case one of them can fix it. It doesn't matter for the model is coming from.
Click to expand...
Click to collapse
Thanks for the reply.
I have downloaded several roms and extracted the opf of this model and none of them brings the oppo_custom.img, I tried an oppo_custom that I found on the net but it didn't work, I don't know if when trying to flash the first time the bootloader was closed and SPFT cannot overwrite those partitions, I can't get into the bootloader to confirm it.