yashsingh1/xdaforums huggingface dataset:
[Sony Xperia 1 III] val92:
Too embarrassed to say why it wasn’t working. Very dumb

Anyway got boot loop trying another method mentioned in here
[Sony Xperia 1 III] Forbesii:
Have you run

newflasher set_active:a

before you copied the Newflasher into the rom folder?
[Sony Xperia 1 III] Forbesii:
Don’t worry if you haven’t. No data is gonna lose and there won’t be any damage on your phone. Just run the commend and flash again.
[Sony Xperia 1 III] val92:
yeah i did that following the original steps, got bootloop then tried it doing that set active step after the phone was plugged in and it worked fine. thanks
[Sony Xperia 1 III] Valemino92:
Thought I'd share my findings so far.

I successfully flashed my xq bc72 to sea firmware. I believe it was previously on hk. Didn't notice any improvement ( sitting at my desk doing speed tests ) was getting roughly 15-20mbps on 4g+ in Australia Melbourne on optus.

Also flashed tw, pretty much the exact same thing. Signal strength on all firmware was very weak sometime not even there but speed test were still running at the same speeds.

Flashed to xq bc52 UK o2 just to give a try, signal strength seems stronger and speed test show roighly 25-35mbps. Will use this through out the day to test and update. Thank you for the guide

Still can't get volte to work. 5g not sure yet as I don't normally get it at my house.
[Sony Xperia 1 III] Valemino92:
It's a shame Sony don't sell these phones to the Australian market. This would be my ideal phone with it's slim and narrow form factor. Would be amazing if everything worked
[Sony Xperia 1 III] afzal_m:
I have the XQ-BC72 too, and I believe the firmware is HK (is there a way to check which firmware it is on?), since this is an imported set which came from HK. I've had the phone for almost 2 months now, but the firmware version is still on 61.0.A.11.23. Refreshing the software update doesn't really do anything, and it made me wonder if it's due to me being in Malaysia with it's own mobile settings that's causing the phone to not get the latest firmwares after 61.0.A.11.23.

I would like to ask, if it is fine to flash the SEA firmware, and if it will cause any issues to the phone or not? I read that with version 52 of Newsflasher, my user data should be intact. Logically, there shouldn't be any issue, right?

I maybe just want a proper confirmation before I make the jump, since this will be the first time I will attempt to do this, and I hope nothing goes wrong.
[Sony Xperia 1 III] Bofahad:
Why i flash another firmware region if a 5G will never work ???
[Sony Xperia 1 III] afzal_m:
I initially thought my firmware was HK firmware, but upon further checking I have the China firmware. That could be the reason I didn't get any OTA updates ever since getting my phone back in October.

I have since flashed the SEA firmware, and immediately VoLTE is activated on my phone. This is what I've been looking for, and I don't mind that I won't get OTA updates anymore after this, since I can just manually flash the new firmware when it's available.

Glad I strengthen my nerves to go through with manually updating the firmware on my phone.

Also, thanks for the very helpful guide posted here.
[Sony Xperia 1 III] Bofahad:
Did you have 5G enabled ??
[Sony Xperia 1 III] afzal_m:
Unfortunately, my country still doesn't have 5G rolled out yet.

Do you know if there any settings to see if 5G is enabled?
[Sony Xperia 1 III] Bofahad:
I did enabled VoLTE & 5G already .
[Sony Xperia 1 III] ZayedCom:
I have the XQ-BC72 model and I was wondering if anyone here managed to change the firmware while maintaining the OTA update capability, I'm tempted to change the firmware but I don't want to have to update the device manually each time there is a software update
[Sony Xperia 1 III] Bofahad:
Flash HK firmware & u will get updates
[Sony Xperia 1 III] mutilor:
I have a BC72, how can i check what version ROM (RU,HK,SEA etc) i have? I tried googling but not having much luck. or if you can link me to a post explaining

sorry for the noob question.
[Sony Xperia 1 III] Forbesii:
You can input #*#*7378423*#*# on your dialer and goto Sercive info > Software info, and you can find your software version. Chinese and Russian version would display the country name, others would display Global I think. My phone is in RU version now. I cannot remember what are Taiwan, Hong-Kong, and Southeast Asia roms like. I think you can find more info in apps like AIDA64 or device info HW.
[Sony Xperia 1 III] Nirvana Rules:
Question, after flashing BC72 android 12 on my BC62 I get bootloop trying to go back to BC62 because I have Verizon and I get no service. Is there a way to fix it? Or how do I enable VOLTE?

I've tried dialing *#*#VOLTE#*#* but it does nothing... So I can;t use my phone now :(

I've been searching and searching and I just can't figure it out. When I try to use Xperia Companion I get an error when I try to repair... Help!!!
[Sony Xperia 1 III] PlatinCH:
Reflash with bc-72 android 12. I had the same issue after first flash. On 3rd or 4th flash, it worked. Be sure, start newflasher, connect then the phone in flash mode and start with the commands in newflasher.

I also tried flash back to other versions, because i thought that the new firmware doesn't work. Just retry.
[Sony Xperia 1 III] Nirvana Rules:
The problem with BC72 is that since VOLTE is disabled so I get no service. Any Android 11 firmware just bootloops and Android 12 firmware no service...
[Sony Xperia 1 III] PlatinCH:
I have BC-72 with HK customization in Switzerland, VoLTE and Wifi Calling still works (and also did with Android 11 and now 12).
[Sony Xperia 1 III] Hazzay88:
If you be bothered try flashing SEA firmware and then put Vodafone Sim card to see if Volte works
[Sony Xperia 1 III] bpay14:
Hi bro, I'm from Msia too..

may i know after flasahing SEA firmware is it automatically will have VoLTE working for all telco? (I'm using Digi).

Also, SEA firmware will not have OTA update anymore?

how have you been using in the past three months?
[Sony Xperia 1 III] afzal_m:
Hi there!

Yes, after flashing to the SEA firmware, my VoLTE immediately appeared. I'm on Maxis.

It's not just SEA firmware that won't get updates, but any firmware you flash via this method, the OTA update will break.

So far it's been good. My only complaints are on the battery life, and sometimes the phone gets a bit too hot for my liking
[Sony Xperia 1 III] bpay14:
you reply is quick! haha..

thx for sharing, so have to choose either one, VoLTE or OTA update..

i got a Taiwan set instead of HK set...

but for future if there's a new version, u need to update manually, then have to go through all those backup-restore process again? (i assumed flashing firmware will erase everything right?)

actually even now i'm using also feeling hot sometimes, just browsing some videos on social media only.
[Sony Xperia 1 III] afzal_m:
If you're on Taiwan set, maybe try to get VPN and connect to Taiwan, then see if you can get the OTA update?

The steps mentioned in the first post of this thread left all my data and apps intact. I still don't want to jump to Android 12 yet though, so I'm sticking to Android 11 for now.
[Sony Xperia 1 III] bpay14:
alright.. i'll give it a try

i'm current reading & digesting 1st post, will decide later if going to flash firmware or not..

Thanks again!
[Sony Xperia 1 III] azwina:
my phone is HK set after i received , i use newflasher flash to SEA version but i fail many time "device corrupt " before i successful flash to SEA version. may i know if i want back to HK version because i want to get OTA update it is still possible ??
[Sony Xperia 1 III] killzonefury619:
I tried flashing other firmware because unfortunately volte option was not there. I got the xq-bc62 model and any firmware in xq-bc72 and xq-bc42(only japan in this model) results in total loss of network connectivity(except wifi).

Network connectivity works only if i re-flash the xq-bc62 and if I flash xq-bc52 but still no volte.

I had highest expectation from xq-bc72 SEA version since im from India.

If anyone has any idea to enable volte without root or unlocking volte please let me know
[Sony Xperia 1 III] Ndlelex:
It says that when you have flashed in an earlier revision of the firmware it had. As of this moment, both HK and SEA have the same firmware number, so flashing between the two should not give you any problems; just be sure to run 'newflasher set_active:a' command instea of just 'newflasher'.
[Sony Xperia 1 III] GeramanX:
I keep getting this error :(

No usb device with vid:0x0fce pid:0xb00b !
[Sony Xperia 1 III] GeramanX:
Can you please help us get VoLTE and 5G? It´ll be great if you give us a hand ;)
[Sony Xperia 1 III] B:
Hi! I am thinking of flashing the XQ-BC52 firmware (European) on my 512GB Hong Kong/Global XQ-BC72 Xperia 1 III phone… but I'm feeling uneasy because a 512GB version of the European XQ-BC52 does not exist (Only 256GB available for XQ-BC52 in Europe).

Will this cause problems? Is it safe? Which model do you have? 512GB or 256GB Hong Kong/Global?

Thanks!
[Sony Xperia 1 III] OhayouBaka:
I have the 256GB XQ-BC72 (Taiwan).
[Sony Xperia 1 III] NunoB512:
I am having a lot of difficulties flashing my Xperia 1 Mark II, I already had the corrupted message last year when I first flashed it, but was able to repair with the Xperia PC Companion, and then reflashed the US ROM so it worked flawless till yesterday I decided to flash the European ROM because I will be going soon, and cant seem to get it to work, and the PC Companion gives me an error. Can you help??? Thanks
[Sony Xperia 1 III] mikahramo1:
Hi there, hakim here from Malaysia

Would like to check on the ROM version here is it HK set?
[Sony Xperia 1 III] toby913:
hey, are you on HK Firmware? and what is your operator? i just bought one and flashed it to EU.
[Sony Xperia 1 III] PlatinCH:
HK firmware on Swisscom network.
[Sony Xperia 1 III] B:
Hi. So you've successfully flashed the XQ-BC52 (EU) firmware onto your XQ-BC72 (HK) phone? Is your HK phone the 256GB or 512GB version? Any issues so far?

Here's something fun. I have two Xperia 1 III phones :

• one Xperia 1 III HK XQ-BC72 (512GB, black) — ‹ GLOBAL-C2 › in the service menu

&

• one Xperia 1 III FR-EU XQ-BC52 (256GB, black) — ‹ GLOBALEEA-A2 › in the service menu

Curiously, my EU phone has better haptic feedback for the system UI and it somehow feels more like an android robot girl (°‿<), while my HK phone's haptic feedback has a very mushy and soft vibration feel (when you long-press and hold, for example)… and it feels more like a car or spaceship… but I digress. Strangely, it's only the system UI. Gboard and the keyboards have no haptic feedback issues. There are no other differences that I can think of. If you would like screenshots

I wonder if I can flash the EU XQ-BC52 firmware onto my HK XQ-BC72 phone and maybe perhaps fix the system UI's mushy vibration feedback.

However, I'm afraid that the extra 256GB of storage that the HK XQ-BC72 phone offers will cause weird issues with the EU XQ-BC52 firmware, where the EU firmware will not ‹ recognise › the extra gigabytes. It's probably OCD. :)

I might even try flashing the Japanese XQ-BC42 firmware (512GB, SIM-free) onto my HK XQ-BC72 phone. I like the phone to have a foreign feel anyway. I don't feel like flashing the Russian XQ-BC72 firmware (256GB) however, despite it offering an easy way to remap the Google Assistant button without root.

By the way, here's some info :

XQ-BC42 — Japan, SIM-free, 512GB

XQ-BC52 — Europe, 256GB only

XQ-BC62 — USA, 256GB only

XQ-BC72

— SEA, 256GB only

— HK, 256GB and 512GB

— Taiwan, 256GB and 512GB

— China, 256GB and 512GB (‹ CHINA-C2 › in the service menu)

— Russia, 256GB only
[Sony Xperia 1 III] toby913:
i have XQ-BC72 512gb and so far no issues. i bought it used in Vietnam as a HK unit with this 61.1.a.7.35 FW.

i cannot test 5G because i have only 4G sim Tarif nor can i test VoLTE and VoWIFI since i'm not back in Switzerland.

- Sot is around 4H but still pending and optimizing in my opinion.

- i have no issues with haptic feedback.

- the 512gb are recognized as a such

- i also hat Global_user C2 showing -->its now GLOBALEEA-A2-user

- Regarding Otas i'm ok with not receiving them, it would be nice but can live without and flash the phone. --- but i'm considering flashing Latest HK to test if OTA's work. i kind of was afraid that the phone was flashed before with different FW. which also made me flash it

it's interesting to me to see how far sony has come or gone, depending on who you ask :D since the times of xperia Z and Doomlord. because that's where i somewhat stopped using sony.
[Sony Xperia 1 III] sentientcardboard:
Looking to try flashing my SOG03 to SEA Firmware. Been having issues with signal and maintaining a 4G connection as of late. Is it possible? I can't seem to find any information about it.
[Sony Xperia 1 III] mikahramo1:
Hi Forbesii

I'm planning to flash my XQ-BC72 HK/CN Rom to SEA. Did all the above steps however when I opened up newsflasher.exe and start it just close on its own. Did I missed out something? Guidance here is very much appreciated in advance. P.S newbie here
[Sony Xperia 1 III] anmolkakkar:
1. Make sure you have downloaded and extracted the firmware (which is usually done automatically via XperiFirm) in a folder.

2. Once you have download the NewFlasher tool, copy past ALL the files included in that tool (6-8 files) inside the firmware folder where all the files were extracted by XperiFirm.

3. Safer way (so that it doesn't closes automatically) is to open CMD (command prompt) from within the folder where you have extracted the firmware. A quick way to do so is opening the folder via Windows explorer and once in that, in the URL bar at the top, just type cmd and hit enter. It will open cmd with the location as that of your extracted firmware.

4. Follow the steps for flashing as highlighted and it should work.

Let me know if this helps.
[Sony Xperia 1 III] hotcakes_shinku:
For Newflasher did you do:

as stated from:

[TOOL] Newflasher (xperia command line flasher)

Disclaimer: newflasher tool was made for testing and educational purposes, ME is not responsible for what you do on/with your device using newflasher, you must agree that you using newflasher on your own risk, I am not responsible if you brick...

xdaforums.com

maybe you do not have a flash driver.
[Sony Xperia 1 III] mikahramo1:
Hi Anmolkakkar, i did all the above mentioned. Below is the screenshot.

When I pressed any key to continue in newflasher.exe it automatically closes. I'm using the stock usb type C cable from Sony.

Is there anything that i need to do at developer options or in the recovery mode?

Thanks in advance for your guidance
[Sony Xperia 1 III] mikahramo1:
***Latest Update***

Successfully flashed it SEA firmware after 4 attempts. it works so far. Getting the VoLTE already since im in Malaysia. Special thanks anmolkakkar and Hotcakes_shinku. Missed installing the flash driver.. Hope this sort out my network drops.

Thanks again. Appreciate very much
[Sony Xperia 1 III] XDA00000:
Hi, maybe this has been answered already, but how do I know which is my current firmware on my Sony Xperia 1 iii XQ-BC52 when you cant find the CDA in the service menu since Sony removed it.. In xperifirm it only has the CID no. next to the firmware... Cheers
[Sony Xperia 1 III] Legionary2099:
I have flashed successfully from HK native firmware to SEA. I live in Viet Nam. What i see :

Volte is working, 5G do work but very limited access ( due to VN 5G only roll out in specific areas).

The phone do not receive OTA since it is tied to phone ID. But there is an easy way to flash update.

Just copy the update onto an SD card (don't put it in any folder). Enter recovery mode and select update from file and it should work.

The phone boot A LOT faster on SEA rom than on HK rom. Then again this might be due to Android 13 vs 12.

The boot screen show an android icon now (this wasn't there on HK rom).

Top down UI is now lavender color.

I do not recommend using 5G with this phone even if you have access to it. It does not have the heat dissipation necessary to use 5G. The phone will get high temp warning.

The guide do need a few clarification : You need to power down and connect the phone to the PC FIRST. You also need to remove 4 SIN files highlighted by another command BEFORE you run flash tool. Otherwise it WILL loop boot and you will waste time ( your data is fine though).

Rant :Xperia phone really need to have physical heat dissipation mechanics built into the newer models. ( You can steal other phone copper cooling or vapor chamber and put that onto the CPU , it does help, but it WILL make your hand feel sorry). This require some skills and will void quarranty. I think the one from Note 10+ should work.

WARNING : IF YOU UPDATE TO ANDROID 13 YOU WILL NOT BE ABLE TO REROLL BACK TO ANY ANDROID 12 ROM !!
[Sony Xperia 1 III] VO7T:
i had same erros with you before.

look at your firmware folder, find this file and install it, then re-run newflasher, you will pass erros "no usb device vid:0x0fce pid:0xb00b"

Goodluck.
[Sony Xperia 1 III] aceng.azri:
Hi all..very sorry for this off topic..can this method be used for xperia 5 iii (xq-bq72)?i have the taiwan version..can i flash by this method for SEA firmware?im living in malaysia..could not get volte :cry:
[Sony Xperia 1 III] mikahramo1:
Hi Aceng, yes it can be done as well. I have the same experience with you where network drops as such. Just back up your phone and just install the SEA firmware. Just read the thread carefully throughout yea.

All the best
[Sony Xperia 1 III] aceng.azri:
Tq kind sir
[Sony Xperia 1 III] rixard14:
Hello

I was trying to do the flashing, but when I go to the last step, shows set slot 'b' active and now its looping on logo .. What can i do now?
[Sony Xperia 1 III] mikahramo1:
Hi VO7T

Thanks for the tip.

Question, since the Android 13 is out now is there a way to update it without losing all the info in the phone.?
[Sony Xperia 1 III] VO7T:
Follow that video you will not lose any data.
[Sony Xperia 1 III] mikahramo1:
Appreciate it man. Thank you very much! Cheers~
[Sony Xperia 1 III] VO7T:
Pls tell me if it's helpfull.
[Sony Xperia 1 III] cheesepuff:
that video was perfect. updated my phone for the first time in months.
[Sony Xperia 1 III] mikahramo1:
Hi @VO7T it worked like a charm. All data is intact and managed to do it smoothly.
[Sony Xperia 1 III] AliOfHashemi:
I want just to downgrade my android version with this method.

No change my original HK firmware to SEA or TW or ...

is OTA update work?
[Sony Xperia 1 III] mikahramo1:
Yes you can downgrade to SEA or TW but you won't be getting OTA anymore
[Sony Xperia 1 III] AliOfHashemi:
Hi mikahramo1 thanks for your replay.

but...

as I told. I dont want change my Frimware country.

is OTA work?
[Sony Xperia 1 III] azwina:
i think you cannot downgrade if you downgrade your device cannot boots. if you change your origin country to other you will not get OTA only flash back to origin country OTA will work
[Sony Xperia 1 III] AliOfHashemi:
Thanks for your reply.

What is your mean can't boot If I downgrade from Android 13 to Android 12? Are you sure?
[Sony Xperia 1 III] bentree:
You cannot flash older versions of Sony firmware once you have flasher a newer version. Sony devices feature rollback protection. The only way to flash older versions is to unlock the bootloader and then flash older version.
[Sony Xperia 1 III] AliOfHashemi:
I got it. Thanks 👍
[Sony Xperia 1 III] Laclevuinhon:
Sir, how do you download update to sd :((
[Sony Xperia 1 III] zainfeb13:
I'm based in Malaysia and was able to flash from HK firmware to SEA firmware on my Xperia 1 iii HK set. Immediately got VoLTE on Digi network. Of course no 5G as the phone has not been approved by DNB.

However, I have a question as to how to now get VoWIFI (WiFi Calling) as I know that MY sets have this feature but HK sets being used here do not have this.

Is there any way to get WiFi Calling?
[Sony Xperia 1 III] OnnuuR:
I'm a Xperia 1 mark 3 user(XQ-BC72), Android 12 was installed on my device(Customized RU 61.1.A.1.149)

I installed according to the installation instructions (Customized SEA 61.2.A.0.472) but the device started rebooting constantly and did not turn on in any way. Type-c to type-c cable I use. Thinking that the source of the problem is the cable, tried again with a usb to type cable and the result did not change. At the moment the charger is also finished. Please help.
[Sony Xperia 1 III] OnnuuR:
Even though I followed the instructions completely, the phone was stuck in the flashing loop, I tried to roll back to the old rom and it still didn't work. I last formatted the data and the phone was hard bricked, now it is not responding at all. When I connect it to the computer, it doesn't even appear as a drive.

I regret not using Flashtool.
[Sony Xperia 1 III] sal82:
I live in Canada with an XQ-BC72. If I flash the US version, will 5G work? 🤔
[Sony Xperia 1 III] Forbesii:
No. Instead you will loose stable LTE connection. To use unsupported service please check this article.
[Sony Xperia 1 III] sal82:
I'm on public Mobile. And I want 5G.

Will that guide work? 🤔
[Sony Xperia 1 III] Forbesii:
I never tried with Telus or MVNOs from Telus (I mean 5G. Others are confirmed to work). I know that Rogers work before they put 5G on their MVNOs. I would guess Telus work.

Anyway this procedure can get you some extra features like VoLTE and VoWifi (confirmed working) and voicemail access in the phone app (I remember there's a voicemail button when I tried with a Telus sim card). If your phone is already unlocked, go give a try! You can recover it anytime you want by flashing the stock again if you find you don't like the mod or cellular doesn't work after the flash. If it's not unlocked, go check the unlock guid and warnings before you decided if it worth a try.
[Sony Xperia 1 III] casouzaj:
I think you will have to wipe your data (factory reset), in order to succeed.
[Sony Xperia 1 III] Ag0212:
Hello i plan to get an xperia 1iii (SO- 51B ) running a13(61.2.C.0.161) will I be able to use this guide and flash a global rom and be able.to upgrade to a13 as well? I like the device a lot but im worried about it being a docomo unit and not be able to use it abroad.
[Sony Xperia 1 III] jon100:
Hello. Can someone help me with the phone xq-bc52 firmware android 13 customer EEA, I use two cards with the first yet /telenor/ for voice calls, the second telekom for internet, neither the factory ROM nor the custom ROM, there is no volte on the first card, only on the second one and when I make a call the the first time it turns off the internet, the other card is turned on, the internet access during the call was not a problem with another phone, if anyone knows, please let me know.
[Sony Xperia 1 III] KathirPriyaN:
WHAT IS THE ERROR MESSAGE ?
[Sony Xperia 1 III] Kiyoshi15:
Hello.

Could anyone please provide me with OFFICIAL XperiFirm Android 11 firmware for Xperia 1 III? The last version is 61.0.A.23.20, but I'll try anything (namely - 61.0.A.11.23, 61.0.A.15.35 etc.). I have the 512 GB ver. (XQ-BC72), so preferably SEA or HK versions, but I'll try ANYTHING that MIGHT work. The only ROMs that are working after flashing are the ones currently available on XperiFirm (XQ-BC72_Customized SEA_61.1.A.11.88, XQ-BC72_Customized SEA_61.2.A.0.472A), but these are, of course, respectively Android 12 and 13 versions.

Files downloaded from https://support.halabtech.com/index.php?a=downloads&b=folder&id=128648 or https://androidfilehost.com/?w=files&flid=331094 aren't working (bootloop) and there are literally no other websites with these ROMs.

Yes, I have the bootloader unlocked, latest Newflasher downloaded and all necessary drivers installed.

I'd be forever grateful for help!
[Sony Xperia 1 III] TaMao6:
Hello, So I wanna flash my Xperia 1 III (SOG03) into Global ROM. Is there an effect for the NFC?
[Sony Xperia 1 III] Forbesii:
Hi. I don't own a Japanese variant of this phone. However based on my knowledge, you may lose FeliCa (osaifu-keitai). Also as I mentioned, cross model flashing might cause randomly LTE disconnection. You can refer to this post and this post for more information about how to enable FeliCa on non-Japanese phones if you are interested.