yashsingh1/xdaforums huggingface dataset:
[Huawei P20 Pro Guides, News, & Discussion] Grancapitan:
Could you tell me the menu that you used until you get to the dual sim configuration ?.

I have the tray of the Huawei Mate 10 pro (I have not found anyone who sells the tray of the p20 pro dual sim, since the single sim model is prepared for 1 single sim), insert 2 sim and only recognizes me the first (in the same position than the original tray).
[Huawei P20 Pro Guides, News, & Discussion] hpolimar:
is there any way then to upgrade to .128 ?
[Huawei P20 Pro Guides, News, & Discussion] sarichter:
That is correct. It's greyed out until a second SIM is placed in. Remember though that the dual SIM versions of these phones are Dual SIM Standby. Huawei did not implement a Dual SIM Active configuration.
[Huawei P20 Pro Guides, News, & Discussion] wan8_kln:
i have the same problem.

i flashed my CLT-L04 to CLT-L29

everythings changed to CLT-L29 and it can OTA update.

but, the dual sim menu was no showed in settings menu,

i use the search function go into dual sim menu, and its cannot tuen on/off sim 2,

even i put 2 sim card with p20pro dual sim sim tray.

i tried use this thered method and buy credit from funky hauwei single to dual.exe

all the same problem, any ideals?

thankyou
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
I have edited first post. After double check, there is no hardware possibility to have dual sim from single sim main board. So, if you rebrand CTL-L09 to CTL-L29 there will be no dual sim. Not even if you pay
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Hi,

In regards to your guide, I'd space out the steps with a gap and clarify some things a little more, I'm sure people have got through these but I'm also aware of the problems people have had, might be worth clearing up some of the most common issues and outlining specifically what's needed for each step, ie: commands to type in terminal, one line at at a time or all at once?

Up to yourself, glad it exists just think it could be tweaked to show more clarify for each step in order to avoid bricks and maybe to entice more people to commit to de-branding as its almost certain to be required for any ROMs that come along, the newest one being proof of that.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
If it's written "paste command..." as one step then it's clear to do that all at once but i added additional explanation. What else you suggest to be clarified? It's simplest as it can be. You need only elementary knowledge about this and in case that is to hard then you always have payable solutions
[Huawei P20 Pro Guides, News, & Discussion] dlads:
This so one of my many guides.

https://xdaforums.com/nexus-6p/themes-apps/walkthrough-screen-off-animation-using-t3314794

As you can see it's a lot easier to follow by some way.

This one is quite old so links are probably out of date but you get the picture right?

Please note I'm not bashing you I'm trying to help you mate, I don't need help de-branding I'm trying to help people who've already had problems or people who may in the future, bare in mind that this is a go-to thread for everyone who wants to debrand and not pay funky, just trying to help eliminate any issues.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
It's lot easier because it have less steps to be done.

No steps in my manual can't be jumped
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Lol ok mate, you carry on, can see you're being a little ignorant.

Fyi the formatting is what I was referring to not the amount of steps involved.

Youre leaving things up to interpretation which is why people have had issues, if you can't see that then I'm wasting my time.
[Huawei P20 Pro Guides, News, & Discussion] HrnSrky:
my device L29 (C636) and how can I rebrand it to L29 (C432)

Its possible! Now c636 dual sim. If i can rebrand it can be same dual sim?

Someone can help pls
[Huawei P20 Pro Guides, News, & Discussion] dlads:
[MENTION=1599044]ToLive4[/MENTION]

This is my point
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Simply follow the rebranding steps from first post
[Huawei P20 Pro Guides, News, & Discussion] HrnSrky:
We need help :rolleyes:
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
What's the point?When someone don't read instructions or dont understand instructions it is not possible to help him. In this case guy want to change region and its covered in instructions
[Huawei P20 Pro Guides, News, & Discussion] doromax:
This is not true ! Absolutly not true !

My personal Huawei P20 Pro was bought as CLT-L09 (C432 europe). With FunkyHuawei tool I flashed CLT-L29 (C432 europe) firmware and now, from about 1 mounth, a I have a CLT-L29 DUAL-SIM completly worked !

Both sim1 and sim2 works flawlessy. At the same time both SIM in 4G !

Also there is a great dual-sim managment from software.

So I can confirm that HARDWARE IS THE SAME both in CLT-L09 and CLT-L29 !

Also other XDA members have done the same rebrand. There is also one post XDA member that have done the rebrand without FunkyHuawei tools.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
It sounds great, and it would be flawless if you could post some screenshots here
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Yep I know pal, I've already said to the OP to clean up the first post but by all accounts it's perfectly clear.

Good luck I guess.

---------- Post added at 04:38 PM ---------- Previous post was at 04:36 PM ----------

Lol if it was clear then they wouldn't ask, that's my point pal

You've allowed variables to go unheard leaving the gate open for problems, just trying to help you mate.
[Huawei P20 Pro Guides, News, & Discussion] Grancapitan:
Did you buy the mobile phone through an operator? So I did and I'm afraid they are blocked by hardware to not be able to change from single to double sim. :(
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Where exactly? Point them and I will change them
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Just the way it's written mate, id normally say where you need to be on the phone prior to each step, ADB (device booted) fastboot, recovery.

Number 2 do you use L29 if you've got a different variant?

Number 3 id add the links to that section

Number 4 what exactly is the code to be typed in?

Put the code to be typed in in italics so it stands out.

Number 5 so we've left fastboot? Nothing to state we have and we need to install an APK? State If the device needs to be booted up at this point.

Number 6 where is the oeminfo file? I know it's in the gdrive but I'd link to it at this point, does it need to be on the root directory?

Number 7 boot into Android system? We just installed an apk according to point 5 ? Aren't we already there??

Numbers 3 and 8 - 19 where specifically are the files we're working with stored? Are they on the phone? Or the computer, are we working via ADB or via a command prompt on a PC, are we booted into the system or recovery at this point?

Locations of the files need to be referenced so that no mistakes are made.

Number 24, what exactly happens here? How would someone know if it's working? Region? How would someone know specifically what they can use?

Perhaps a list of what this method actually works on and what to avoid, maybe an FAQ.

Add a space as I have between steps, easier to read.

Lastly are there any prerequisites? Should prior be backing up their oeminfo? Anything else they should be doing in offer to be able to get back to normal? Avoid bricks etc?

PS not being a d*ck pal trust me, I'd just like it to be clearer, if you'd like help with it I'd be more than happy to help, I have some spare time today.
[Huawei P20 Pro Guides, News, & Discussion] doromax:
For me it isn't true ! I bought my phone in Italy from Wind (italian mobile operator). It was a single-sim CLT-L09 with also sigle-sim tray holder.

With FunkyHuawei tool plus payed credit and my phone now is CLT-L29 with two running sim.

Also, my phone recived the original OTA from Huawei ( about 562mb) and now I have firmware .120 always dual-sim CLT-L29.

The Hardware of CLT-L09 and CLT-L29 are exatcly the same !

Differs only by bootloader and firmare, that is only by software side!

---------- Post added at 07:20 PM ---------- Previous post was at 06:57 PM ----------

I did the flash in April, 08 and I haven't pictures.

My box of the phone yet says CLT-L09 and instead the phone, under options says CLT-L29.
[Huawei P20 Pro Guides, News, & Discussion] wan8_kln:
No, i ordered from hauwei not from opearter.

i searched from fcc cert website they said CLT-L04 is using CLT-L29 same mother board version HL1CLTM

and i dissembly the phone and it has 2 sim slot.

so, i'm thinking the hardware may support.

just need some files to made 2 imei?
[Huawei P20 Pro Guides, News, & Discussion] mikescool:
So you were on single sim now you rebranded and dual sim work?

Why in OP it says: THERE IS NO HW POSSIBILITY TO CHANGE SINGLE TO DUAL SIM, SO EVEN IF YOU GO FROM L-09 TO L-29 THERE WILL BE NO DUAL SIM!!! NOT EVEN IF YOU PAY TO FUNKY
[Huawei P20 Pro Guides, News, & Discussion] dlads:
I haven't bothered as I don't need two sim cards but I've read about others having that functionality, tbh though it's only switchable they aren't live at the same time like the OnePlus 5 is, you pick one over the other which is a bit crap.
[Huawei P20 Pro Guides, News, & Discussion] Horayken:
Hello! What method did you use to rebrand? Funkyhuawei or CLT-09 to CLT-29 debranding tutorial? did you bootloader code and IMEI change? I have an CLT-04 too from telcel and want to update to newer verisions. Still on 8.1.0.102(c69)

Thanks a lot
[Huawei P20 Pro Guides, News, & Discussion] wan8_kln:
I have 2pcs clt-l04

One use XDA method to rebrand to L29

It works fine without dual sim and bootloader can unlock agina , code not changed, can pull back to L04.

One use funky hauwei method to reband single to dual LYN

It works fine without dual sim , but bootloader locked again and bootloader code changed and no method to unlock again at this moment.

Staying at L29 firmware , have OTA update but cannot pull back to L04, cannot root.
[Huawei P20 Pro Guides, News, & Discussion] mikescool:
[MENTION=386330]wan8_kln[/MENTION] I have the same model CLT-L04 (Canadian). I just want to clarify what you mean work without dual sim? I thought rebrand will make dual sim work? Did you try with the proper double sim card tray?
[Huawei P20 Pro Guides, News, & Discussion] wan8_kln:
i have p20 pro chinese sim tray and phone.

but dual sim still not work when put 2 sim with the tray.

the settings was grey out.

i opened the phone, board number is same as chinese version.

but the network chips , 2pcs is different and 2 small RF controller were missing bewteen chinese version.

i think its hardware problem:(
[Huawei P20 Pro Guides, News, & Discussion] mikescool:
Oh that sucks for us. :crying::crying:

Thanks for checking!
[Huawei P20 Pro Guides, News, & Discussion] Grancapitan:
I think that it is possible that the change was produced by your tutorial (thank you very much for it).

There goes: before paying anything in funky, see if you have, those who have followed the tutorial of this rebrand thread from single to double sim.

How ?: looking in ADJUSTMENTS "ADMINISTRATION OF DOUBLE CARD": if everything went well you will be 2 (one active and the other, of course, inactive unless you bought a sim tray for the Huawei P20 pro dual sim model -I bought it in this link, which was passed by a member of HTcmania.com forum: https: //es.aliexpress.com/item/Para-HW-P20 -P20-Pro-card-SIM-tray-holder-slot-adapter-Micro-SD-memory-support-Socket / 32870926355.html? Spm = a2g0s.9042311.0.0.3d5963c0c3ppQh -).

If not, to pay 8 credits (I have taken 1 more of the account, there are 7 to change the rebrand, to download updates). Well it is very simple, I attach the website: https://funkyhuawei.club/tools/rebrandp20 and I do not pass the file because it checks the funky account and if you have balance.

A greeting. ;)
[Huawei P20 Pro Guides, News, & Discussion] doromax:
I write about The Dual-sim problem that doesn't work after flash neither with this guide nor with FunkyHuawei:

For me the problem is where the phone was made for.

I explain .

Europe phone CLT-09 and CLT-29 are ALL with dual-sim motherboard, but with different firmware and bootloader.

I , [MENTION=2952182]blade4711[/MENTION] and other two boys of an Italian forum we have successfully transform the CLT-09 in an CLT-29 with dual-sim working flawlessy.

Now someone here has turned the phone but, while everything else is working, only one sim is seen.

Is it possible that these people bought / had a telephone not made for Europe?

The problem could be all there.
[Huawei P20 Pro Guides, News, & Discussion] ita514:
Doromax, I do not understand more than a bit in mobile programming (i'm here looking for help), but I can confirm in data networking area the chinese specifics are different in many cases, most of all in wifi area, so your theory of regional incompatibility may be right
[Huawei P20 Pro Guides, News, & Discussion] kaiowas82:
A massive thank you to the OP, despite the guide is not very clear it's still dead simple!

I've just rebranded my clt-29 c782 to c432, installed the firmware provided (120) and everything worked.

At first boot I have received the ota for 128 which is installing right now.

Again thank yo!
[Huawei P20 Pro Guides, News, & Discussion] SpH1nX:
Can I use the latest .128 to rebrand a L09 to a L29? I'll follow the guide but I'll flash the L29 .128
[Huawei P20 Pro Guides, News, & Discussion] usmcnyc:
So I'm getting the chipset-boston model problem, can anyone elborate a bit more on how to fix this? I've gone thru the steps 3 times and no change. Any further software installs fail at 5%. The first one went through no problem.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
You must follow these steps

6. Copy OEM info binary file to internal memory oeminfo.bin

7.Boot into Android System enable adb debbuging in developer settings.

8. Start ADB

9.adb shell

10.su

11.accept the prompt at your P20pro

12.mkdir /data/local/tmp

13.mv /sdcard/oeminfo /data/local/tmp

14.cd /data/local/tmp

15.chmod +x oeminfo

16. ./oeminfo CLT-L29 C432 hw/eu

If you can't connect via adb now, you should finish root and download oeminfo and Magisk directly to the phone. After that do these steps via terminal emulator directly on the phone
[Huawei P20 Pro Guides, News, & Discussion] nox01:
I already performed these steps and I am still having the Chipset-boston 8.1.0.001(01F4) Comp number, any additional suggestion? I already tried executing the whole process, no errors, i just tried the OEMINFO part exactly as specified above, no errors on the process. Any advice or suggestion is very welcome i have a CLT-L04. Thansk
[Huawei P20 Pro Guides, News, & Discussion] hpolimar:
today i got the notification of the .128 update but it failed

---------- Post added at 10:42 AM ---------- Previous post was at 10:09 AM ----------

did it again successfull. going to re root it
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Have you also follow the steps for sw upgrade from HWOTA folder?

I have tested with crossing of L09 and L29 and Boston issue happens when when skip or miss edit of oeminfo
[Huawei P20 Pro Guides, News, & Discussion] SpH1nX:
I've to update to .128 too. Can you please explain what happened to you and how you solved? Thx
[Huawei P20 Pro Guides, News, & Discussion] hpolimar:
first time i did not notice update was available. the phone asked me to install it and it rebooted in 1 second. after it said update failed to check file and so on. then i went to setting, check 2-3 times for updates, and at the end it downloaded the 3.7gb files and installed it correctly
[Huawei P20 Pro Guides, News, & Discussion] usmcnyc:
I tried again just now and still coming up with chipset-boston error. I took a screenshot of my adb commands. I guess the issue lies with "./oeminfo: can't execute: is a directory" ?:confused:
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Yes, there is a problem.

Have you copied my oeminfo bin to root of your phone? If not than you can't move it with this command and since there is no oeminfo in data/local/tmp you can't to edit it
[Huawei P20 Pro Guides, News, & Discussion] usmcnyc:
the oeminfo file that i downloaded shows up as a blank file whereas I can see in Es Explorer the original oeminfo has a .bin extension. Should we rename it with extension .bin?
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
No need to do that
[Huawei P20 Pro Guides, News, & Discussion] usmcnyc:
I figured it out. For whatever reason the adb command wouldnt let me copy the oeminfo file to the /data/local/tmp directory with the oeminfo folder there. I deleted the oeminfo folder and copied the oeminfo file into /data/local/tmp. Once I did that all the rest of the commands went thru no problem. Only issue was I got a software install fail upon reboot and then the next reboot installed but factory reset everything. But at least now it's correctly showing CLT-L29 C432.
[Huawei P20 Pro Guides, News, & Discussion] SpH1nX:
Coming from . 120 can I unbrand using. 128? There's no point in downgrading. Are the firmware file somehow special or just L29 firmware files?
[Huawei P20 Pro Guides, News, & Discussion] nox01:
I already did it, but please just in case what do you mean by "miss edit of oeminfo"? Are you talking about this command?

./oeminfo CLT-L29 C432 hw/eu

Thanks
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Yes, and commands before that
[Huawei P20 Pro Guides, News, & Discussion] Brunori93:
I follow this guide kinda 20 times but it still ends with my device detected as boston chipset... i have clt-l09 c55
[Huawei P20 Pro Guides, News, & Discussion] usmcnyc:
Try what I did, root the device and use a root file explorer to move the oeminfo file to /data/local/tmp. There's an oeminfo folder in there, I had to delete it for it to accept the oeminfo file. After that do all the rest of the commands and they should take no problem. Just make sure you back everything up because mine did a full wipe and I lost all my pics from my trip to Basque Country last week.
[Huawei P20 Pro Guides, News, & Discussion] Brunori93:
Did it but no luck
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Have you flash the phone with files from first post? Only in that case you should be able to edit oeminfo with this command ./oeminfo CLT-L29 C432 hw/eu

In case that you have used some other files than you have to use suitable command according to used type and region.

For example if you have used some L09 flash files wit C55 region you should use ./oeminfo CLT-L09 C55 hw/eu
[Huawei P20 Pro Guides, News, & Discussion] nox01:
Just letting you know after several times doing the process I got now my correct región, can't explain it, thanks a lot for your help. CLT-L04(C69) successfully converted to CLT-L29(C432)
[Huawei P20 Pro Guides, News, & Discussion] dlads:
When converting did you need to reunlock your bootloader?
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
No need for reunlock. It stays unlocked. Only if you dont want to get unlocked warning you can relock Bootloader with code which is used for unlock
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Yea but I've read in certain instances that after de-branding the dude is actually different.

It's good that is not happened to you, means it won't for the device I have here
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Bootloader code don't change with this method. It stays same
[Huawei P20 Pro Guides, News, & Discussion] Chiangwoo:
so,if a have L29C636 flash files I can use ./oeminfo CLT-L29 C636C hw/as to change it to Asia version

and if i have AL00 flash files I can change it back to Chinese version?that right?
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Exactly!
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Wonderful thanks mate.
[Huawei P20 Pro Guides, News, & Discussion] Brunori93:
Ok i went trough this, I had to move files with rooted phone instead of adb commands then it went like a charm... how to get .128 update now?
[Huawei P20 Pro Guides, News, & Discussion] alfiabraham:
Rebrand to AL-00

Hey [MENTION=4637555]nsilva.android[/MENTION] ,

I'm trying to achieve the opposite of what you'd done. I have CLT-L29 Dual SIM with android 8.1.0.128 (C636). I want to rebrand my phone to CLT-AL00 (C675) which is the Indian region customization. I badly want to do this because one of my mobile operator is not able to pick up VoLTE. Can you please help me with this procedure?! I'm afraid I might screw up the process ( I was well versed with Sony Android Dev until 2 years ago). I don't mind paying for your help. Pls!
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
It looks great ???
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Thanks man, hopefully it'll help. :)

did my best to not miss anything out, think it's all good, it got me debranded so should be ok.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Download files via Firmware finder for CLT-AL00 (C675) and do the same thing like in manual, just change command ./oeminfo CLT-L29 C432 hw/eu

Instead of that type ./oeminfo CLT-AL00 C675 hw/as (I think that India goes under the Asian customization)
[Huawei P20 Pro Guides, News, & Discussion] rguillen04:
Thank you very much [MENTION=1599044]ToLive4[/MENTION] and [MENTION=2880355]dladz[/MENTION], both of you made it possible for me to use this guide to debrand my CLT-L04 from Mexico (Telcel) and turn it into CLT-L29 (C432).

Afterwards I was able to update from 120 to 128. I was then able to relock the bootloader and have a perfectly working european P20 Pro.

Where could I look for the files necessary to debrand a Huawei P20 (non-pro)?
[Huawei P20 Pro Guides, News, & Discussion] dlads:
Got a mad problem since debranding.

I'm fully on 128 and L29 and the model has altered.

But when i've tried to install TWRP and it just doesn't stay.

So in order.

Install TWRP from here as it's worked before albeit without my PIN https://xdaforums.com/huawei-p20-pro/development/recovery-twrp-3-2-1-0-t3779400

If i boot up, after a reboot i lose TWRP and it won't boot.

If i use the magisk in this thread to root i'll then be able to boot but it won't show me my TWRP??

Lol what order am i meant to install these in, i'd just like to have TWRP and root access with functional Magisk? Any thoughts??
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Have you tried to acquire root and then to install official twrp app? From app you can flash recovery for Charlotte (P20pro)
[Huawei P20 Pro Guides, News, & Discussion] dlads:
i'll give it a whirl mate, i've been at this all day now lol, guide then debrand now this :crying:

---------- Post added at 10:01 PM ---------- Previous post was at 09:56 PM ----------

@ToLive4 do you think the erecovery will work or do you think it'll try to revert back to L-09? I don't want a brick.

At the moment i can't boot, flashing the CLT Magisk img from this thread doesn't help.

---------- Post added at 10:13 PM ---------- Previous post was at 10:01 PM ----------

Ok so if i install the magisk img then press and hold volume up it works?

So do you think if i go ahead and flash TWRP now it'll boot?

Seems to always go to the choice menu rather than the one that just boots straight in, i've even decrypted the phone, ie: Format data.

Didn't make no difference.

Going to give the TWRP app another go, but i've read it can't decrypt data.
[Huawei P20 Pro Guides, News, & Discussion] ToLive4:
Install Magisk ramdisk and after that install Magisk Manager from internet (you need that to grant SU to TWRP application).

After that via application flash recovery and than select reboot to recovery directly from application.

For now it can't decrypt data