Did you plug your phone in first? Try turn off your phone, plug your phone to your pc, and then hold both the volume down button and the power button.
How To Guide Flashing a Xperia 1 iii without unlocking
- Thread starter Forbesii
- Start date
Too embarrassed to say why it wasn’t working. Very dumb
Anyway got boot loop trying another method mentioned in here
Have you run
Code:
newflasher set_active:aDon’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.
Last edited:
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
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.
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.
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
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.
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.
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.
Last edited:
Unfortunately, my country still doesn't have 5G rolled out yet.
Do you know if there any settings to see if 5G is enabled?
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
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.
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!!!
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!!!
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.
I also tried flash back to other versions, because i thought that the new firmware doesn't work. Just retry.
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...
Similar threads
Top Liked Posts
-
There are no posts matching your filters.
-
12
Things needed:
1. An Xperia 1 iii (of corse)
2. A Windows PC (I don't know if there's a Mac or Linux version, but I didn't find it)
3. A reliable USB-C cable
4. NewFlasher
Download: [TOOL] Newflasher (xperia command line flasher)
5. XperiFirm
Download: Tool Archives - XperiFirm Tool
!!!FIRST THING FIRST!!! BACKUP EVERYTHING IMPORTANT
FLASHING A PHONE MAY CAUSE DATA LOSS. PLEASE MAKE SURE YOU HAVE A BACKUP OF YOUR DATA.
1. Download and unzip the XperiFirm and select the ROM you want in the Available Firmware list and download.
2. Once downloaded, unzip the NewFlasher into the ROM folder.
Your folder should look like this:
3. Start a command line in the ROM folder and run "newflasher set_active:a" otherwise your phone will boot into a bootloop.
4. Power off your phone and plug it into your PC. Hold the volume down button and the power button until the LED turns GREEN.
5. Now you can double click on the newflasher.exe in your ROM folder and follow the guide. You can keep user data while flashing, just pay attention on the instructions on the Newflasher.
6. Don't disturb the flasher while it is working. Your phone will automatically turn on after the flashing is completed.
My Xperia was purchased in China (XQ-BC72). I have tried many ROMs like Hong Kong and Taiwan versions. Recently I flashed my phone with the XQ-BC62 ROM and everything works very well (mobile data, voice calling, data roaming, dual SIM, exposure alert, etc.). However, I haven't try VoLTE because my carrier doesn't support it (SO SAD).
I'm in Canada and my carrier is CMLink. The data icon for LTE shows 4G if you're curious.
The DRM is not damaged that the Windvine security level is still L1 so you can still enjoy the HDR content on Netflix after flashing using this method.
UPDATE Sept. 28, 2021
I flashed my XQ-BC72 back. I have several issues while using the XQ-BC62 ROM.
The US ROM doesn't include my carrier's configuration so VoLTE, VoWiFi, showing LTE instead of 4G is not working. According to other threads, T-Mobile doesn't have the configuration as well and someone mentioned only Google Fi users can get a configuration (NOT SURE).
Actually, I didn't find any difference between the XQ-BC62 and the XQ-BC72 ROMs (I'm in Canada).
Although the phone is working fine, the LTE is auto-disconnecting every 30 seconds, while HSPA+ doesn't have this issue. I don't think it's my carrier's problem because I bought a new Fido sim card and it's still disconnecting until I flash it back. So if your LTE works fine, please share your solution down below if you don't mind.
I have heard that the new update 61.0.a.11.92 is enhancing the network performance. I don't know if it's because I didn't update my phone. I don't wanna "play" with my ROM since this is my daily using phone.
Thanks to DennisDD78 who discovered that the OTA is not available if a non-native ROM is flashed, even it's all XQ-BC72. Still, if you make your OTA work, please share your solution!
UPDATE Nov. 26, 2021
I didn’t update the post due to the heavy university work (so sad).
You can keep your data during flashing now by simply choose an option while flashing, as the Newflasher is up-to-date. But still please backup your important data before flashing.
I can confirm that Gpay and android wear work perfectly after flashing, even a cross-model flashing.
Flashing a different rom doesn’t bring any carrier feature like VoLTE and VoWiFi, see this post.
I also tried XQ-BC62 roms again and also XQ-BC52 roms. Same issue, LTE disconnects every 10 seconds, and it brought no new features at all. I haven’t tried those Japanese roms. If you have any experience, please share.3Here are the instructions for keeping data intact while flashing firmware in Newflasher on the Xperia 1 III:
If you only delete userdata.sin, your data partition will be corrupt and you will be forced to factory reset and lose all your data.
To prevent this from happening, not only do you have to delete userdata.sin, but also appslog.sin, diag.sin and metadata.sin from the firmware folder as well. Found this by checking the update.xml file in the firmware folder, all required sin files to delete are listed as "<NOERASE>".
@Forbesii feel free to edit your original post to include this important information.22
***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 much1
Could you please tell me the difference between the XQ-BC62 ROM and other ROMs for example the Taiwan versions. Thanks for your reply.
