yashsingh1/xdaforums huggingface dataset:
[Sony Xperia XZ2 Compact Guides, News, & Discussion] ferluna18:
I understand, I have noticed something interesting about the update notification thing , I bought my phone on USA (xz2 compact single sim unlocked version) and of course it came with a US firmware so Igot the notification to update to Android 10 but very late, I don't know why, (android 10 March version) and I was hesitant about accepting such update but I did, then everything was okay except voice notes, the thing is that I decided to downgrade using the method I posted in this guide and installed a non US firmware, I have been using such firmware for like two weeks and the update center says that the next Android version is Android 10 but it doesn't give me the fastidious notification telling me that there is a mew update for my phone.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] odiad:
Hi, in Xperifirm Android 9 for H8324 ist just available as Rom for Saudi Arabia (52.0.A.11.32/R4B). Can I use this Rom for Europe, and is it including german language? Does anybodyknow?

Greetings Odiad
[Sony Xperia XZ2 Compact Guides, News, & Discussion] pyraohms:
I successfully flashed the Saudi Arabian version 52.0.A.11.32/R4B from XperiFirm onto my XZ2c. There is possibility to choose German as language. My carrier (Tele2 / Sweden) works fine.

I was struggling trying to flash the phone using FlashTool and its .fsc scripts, but when i used newflasher with the advice given in this thread it worked perfectly.

Good luck!

PS. No more unresponsive touchscreen! :)
[Sony Xperia XZ2 Compact Guides, News, & Discussion] odiad:
Hi Pyraohms.

-> Just to be sure - you did the downgrade with locked bootloader, correct?

-> And do you have now the update-info for android 10 in notification? Or is updating after downgrade just manually possible (if a perfect Android 10 will appear)?

Edit: I couldn't wait for an answer, because Android 10 annoyed me again. I tried successfully to downgrade with locked bootloader. All went fine. Now on Android 9 again fingerprintsensor works great again without lags..... I forgot how good it feels ;)
[Sony Xperia XZ2 Compact Guides, News, & Discussion] pyraohms:
Nice. Yeah, the fingeprint sensor works much better with A9, but I still get random freezes when unlocking and the screen becomes unresponsive until I hit the power button to lock and then use the sensor to unlock again. Does anybody else experience this?

I will probably send the unit for repair before my warranty is out. Should probably install the nordic version of A10 first though.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] odiad:
Hi pyraohms. Up to now I haven't had this problem. Not with the original Android 9 (before update to Android 10), and also not after downgrading according to the guide in this thread.

Good luck that you can solve this....
[Sony Xperia XZ2 Compact Guides, News, & Discussion] pyraohms:
Do you know which firmware version that you had before? Latest A9? If not, maybe we can get hold of an old version that do not have these issues somehow.

EDIT: Im downloading 52.0.A.3.27 from XperiFirm to try it now.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] KHPYRA:
Has anyone been able to verify that flashing the Chile firmware on an H8314 on the Verizon network is possible?

I'd really love to get my phone's usability back!! But I'm also afraid to flash something that might not work as this is pretty much right at the edge of my technical scope. I think I would not know how to fix it if the firmware didn't work right.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] theuchi:
Is it still the case that downgrading from android 10 51.1.A.0.672 to android 9 52.0.A.11.32 fixes the touchscreen issues?
[Sony Xperia XZ2 Compact Guides, News, & Discussion] pyraohms:
Unfortunately no. I tried this but when problems persisted I had the unit sent for repair. And I got it back with the remark "firmware reinstalled - passes functional tests". Phone was working OK for some week, then the touchscreen issues got back :/
[Sony Xperia XZ2 Compact Guides, News, & Discussion] odiad:
hello,

according to this downgrade instruction I have to delete .ta-files. What is the reason for that? I am asking because I was on LOS17 (open bootloader and twrp), but had randomly freezing screen and I went back to android 9 using News-flasher (as described in this instruction). Now sometimes I have also in Stock Android 9 randomly freeze of screen. I never had this when I was in Android 9 before Android and LOS17 . So reason could be bootloader/twrp, or maybe that anything from LOS17 remains after flashing stock android 9.

- Is flashing Android 9 including delete .ta-files before just a kind of partly installation, that parts of former Rom can be still in firmware?

- What happens if .ta-files are not deleted before flashing?

Greetings Odiad
[Sony Xperia XZ2 Compact Guides, News, & Discussion] junbacardi:
Thank you so much for this bro. Android 10 for my xperia xz2 compact ruined my device. Now after i follow your tutorial/instructions to downgrade to Android 9, my xperia xz2 compact become smooth as new specially the fingerprint now is very quick responsive. 😊
[Sony Xperia XZ2 Compact Guides, News, & Discussion] dario82ct:
Hi. Could you reload or restore the pictures attached in the first post?
[Sony Xperia XZ2 Compact Guides, News, & Discussion] harpnote:
Would really appreciate this as well. I got my phone back from Sony repairs under warranty but it's a refurbed phone with Android 10. Ew. With 5 mins of Pokego it drains 2% already so I am really anxious about either the battery life on this refurbed phone is **** (I had 92% on my old handset from 2 years of use), or if it's Android 10 being the culprit.

Also if this method doesn't include unlocking bootloader, does it mean my warranty won't be voided? (Any idea, I got 4 months left on warranty).

Instead of getting the software from xperifirm since it's all android 10 on it now, I downloaded the prev version I had of Pie 52.0.A.3.27 from the Sony developer website. Would I be able to use that instead? I tried unpacking it but it's so different to the files that I downloaded from xperifirm..... sorry I have no idea what I am doing.

Alternatively, would it be safe to download and flash the "Commercial and Journalists" version (I live in New Zealand) since it seems like it's the only Pie build on Xperifirm?
[Sony Xperia XZ2 Compact Guides, News, & Discussion] dario82ct:
Hello. I have downgraded to android 8 (having tried them all since I bought the phone, it's my favorite), and everything works great again! The fingerprint sensor is very fast, no more bugs in whatsapp audio messages, the battery lasts much longer than Android 10.

The procedure in the first post is slightly imperfect, as on Xperifirm, the firmwares are downloaded already decrypted (in practice you have to skip steps 2 and 2.1 of the guide).

Obviously I don't take responsibility, but it worked for me.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] SGH-i200:
"Your device is corrupt. It can't be trusted and will not boot."

My XZ2c didn't boot after flashing H8324_Customized DE_1313-6204_52.0.A.11.32_R2B (Pie)! :-( To bring it back to life I had to flash Android 10 again.

@j4nn - Newflasher warns me not to flash persist partition and doesn't flash the ta file in boot sub folder. Is the flashing of that ta file needed?
[Sony Xperia XZ2 Compact Guides, News, & Discussion] j4nn:
@SGH-i200, flashing of the .ta file that is in the boot subfolder was necessary in case of xz1* devices to successfully flash the bootloader.

It may be that in your case downgrading fw without downgrading the bootloader to the corresponding version your device would not boot.

Having incorrect bootloader with xz1* devices caused security stuff to fail, displaying "none" in the security screen in service menu.

I have no idea how it is with xz2* and android 10, it may be that sony enhanced the security to avoid boot at all with incorrect combination of firmware blobs.

Hopefully they did not disable downgrade of bootloader with upgrade to android 10.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] landsome:
Hi! Is the latest stock Android 9 ROM for the XZ2c available anywhere? I cannot seem to find it...
[Sony Xperia XZ2 Compact Guides, News, & Discussion] ferluna18:
hello, sorry for the big big delay on my reply, I am not sure I can do that because I think I don´t have such pictures anymore and I don´t know if I can create them again, but I will see.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] ferluna18:
after being away for some time I am around again (kinda) and I wanted to thank people that found this thread useful and thanked me or confirmed that this method worked for them by commenting that.

Despite of this guide not being perfect I´m happy to know that at least helped a few people.
[Sony Xperia XZ2 Compact Guides, News, & Discussion] ferluna18:
yesterday I followed again my own guide from this post (because I had to flash my phone again due to a non related issue) and this time I had to use a newer version of newflasher and everyhing came out okay, I had to try it twice as the first time newflasher failed to start flashing the phone.

I also used this guide as a complement

Create your own FTF firmware files using XperiFirm and FlashTool [Guide] | Xperia Blog

We recently reported on a fantastic new tool called XperiFirm, which allows you to browse and install the latest firmware files for any Sony Xperia device. We have had a number of people get in touch asking us how they

www.xperiablog.net
[Sony Xperia XZ2 Compact Guides, News, & Discussion] shaddock:
I followed the procedure to try and flash H8324_Customized+FR_1313-2469_52.1.A.0.618_R2C on my XZ2c dual sim to be able to get root access and make a full backup with Titanium before flashing LineageOS, but after flashing the device rebooted into this:

Android Recovery

Sony/apollo_dsds/apollo_dsds

10/QKQ1.191915.002/1

user/dev-keys

Use volume up/down and power

Cannot load Android system. Your data may be corrupt. If

you continue to get this message, you may need to perform

a factory data reset and erase all user data stored on this

device.

Try again

Factory data reset

____________________________________________________________

Supported API: 3
[OnePlus 7T Pro 5G McLaren Questions & Answers] wissam802:
Is it true that oneplus 7 and 7t series are horrible in gaming, due to touch latency? Or is it fixed by an update?
[OnePlus 7T Pro 5G McLaren Questions & Answers] Oswald Boelcke:
THREAD CLOSED as duplicate of https://xdaforums.com/7t-pro-mclaren/help/touch-latency-t4071105/post82087365#post82087365

XDA Forum Rules (excerpt):
[Samsung Galaxy Note 10+ Guides, News, & Discussion] nitinmits:
Friends now you can lock bands and enjoy speeds. Watch this

https://youtu.be/K-DN0q64lRw
[Samsung Galaxy Note 10+ Guides, News, & Discussion] winol:
So, you lock to that b40 lte band, but, if it is faster or whatever, why it is not the default one? More to it, I thought that the device chose the best band among the ones available, so, why would locking on just this one is really beneficial? Please elaborate
[Samsung Galaxy Note 10+ Guides, News, & Discussion] nitinmits:
because most of the time a particular band is overloaded and other band is free and if we lock to a particular band it will result in good internet speeds and coverage also. Also some people want to disable carrier aggregation as it eats lots of battery so band locking will help
[Samsung Galaxy Note 10+ Guides, News, & Discussion] nitinmits:
and it works on Qualcomm Snapdragon also
[Samsung Galaxy Note 10+ Guides, News, & Discussion] TheInfiniteAndroid:
Doesn't this mean you'd have to remember the unlock the band again if moving away from the cellular tower in case the next one doesn't support it, then re locking?, Seems only useful for when sat at home stationary where WiFi is available anyway?, Good find, but seems a little pointless imo!
[Samsung Galaxy Note 10+ Guides, News, & Discussion] nitinmits:
Well it is very helpful in India and yes during roaming locking band on the band having long range like preferring band 3 over 40 is useful
[Samsung Galaxy Note 10+ Guides, News, & Discussion] GDHAMTON7:
Awesome
[Samsung Galaxy S10+ Guides, News, & Discussion] nitinmits:
Friends now you can lock bands and enjoy speeds. Watch this

https://youtu.be/K-DN0q64lRw
[Samsung Galaxy S10+ Guides, News, & Discussion] iamnotkurtcobain:
How do we know which bands are good?
[Samsung Galaxy S10+ Guides, News, & Discussion] nitinmits:
It depends on operators and location to location. Check speeds and coverage of your operators band and which band works best.
[Samsung Galaxy Note 9 Questions & Answers] nitinmits:
it also work on Qualcomm Snapdragon also
[Samsung Galaxy Note 9 Questions & Answers] Smartphones13:
So where can I find this app? Which version
[Samsung Galaxy Note 9 Questions & Answers] nitinmits:
On play store search quickshortcutmaker
[Samsung Galaxy Note 9 Questions & Answers] Smartphones13:
Yup I got it now...just dont know which bands to choose. In the US on tmobile. Any suggestions?
[Samsung Galaxy Note 9 Questions & Answers] nitinmits:
u can try all these on T mobile
[HTC Wings] mpeters:
Hiya,

I looked in this forum- section but I cannot find neither, Neither on google.

I want to change the my documents location to my storagecard.

I found the registry tweak for wm5 but I have wm6 which seems to have a slightly different registry.

anyone knows how to change the location?

tx:)
[HTC Wings] mpeters:
anybody knows the answer?
[Samsung Galaxy S9  Questions & Answers] nitinmits:
Friends now you can lock bands and enjoy speeds. Watch this

https://youtu.be/K-DN0q64lRw
[Samsung Galaxy S9  Questions & Answers] nitinmits:
It will work on Qualcomm's device also
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Friends now you can lock bands and enjoy speeds. Watch this

https://youtu.be/K-DN0q64lRw
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
It will work on Snapdragon also
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] artiguesan:
Thanks!
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] y3kt:
Just tried it on my S20 Ultra 5G, Qualcomm version and works as well! It has been a while since I could lock a certain band on my Samsung device without having to root, so thanks for the heads up!

I have created a video as a proof, available here https://youtu.be/H7EhuUfcQio
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] cizake:
this is an amazing find!

Thank you for that.

I wish there was a way to revert to default.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Thanks if it help u can share it with others
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] y3kt:
You can always revert to default by clicking the selection toggle again.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
What's this do please? Never heard of locking bands? So it gives you the best mobile speeds at all times? If anymore info could you point me in the right direction cheers
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Dear friend

If you reside in a particular location and the nearby tower is having many bands of same operator. Our mobile phone latches to a particular band or a combination of band called carrier Aggregation or LTEA depending on the configuration of cell site. You can try any combination which gives best speeds at your place and also coverage.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
How do you get to the incremental search part? You using an app

---------- Post added at 07:55 PM ---------- Previous post was at 07:50 PM ----------

Is there some instructions to follow the way to do it for s20 ultra? Cheers
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Mohamad Gahed:
It worked on my s10+ exynos ?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Lte b40 gives me no signal gives me the ? sign, what others are good fast bands please? Also I'm in UK if that makes a difference
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Dear check your operators band available in your city. They are different in different countries. Search ur operator band on internet
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Ronny220:
Can I lock onto 5G with this?

I'm having an issue where my S20 plus does not show any 5G options in the connection settings.

I have a 5G plan with EE in the UK
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Yes u can lock. Try.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] ekerbuddyeker:
What app do you use for band selection
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
quickshortcutmaker
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
Does this also mean better standy battery drain?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
yesbif connected to a stronger signal band
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
i have locked it to TDD LTE band 40 for maximum speed. Noticing significantly lesser battery drain for now with screen on.

May be while travelling should choose lesser bands for coverage.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Which company sim?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
Jio and Airtel both
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
On jio lock to band 5 it is empty and coverage is also good
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
Chose LTE B5 preferred. Will get back after some testing.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Ok Band 5 upload speed is also good
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Do u feel any difference?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
B40 on Jio feels slightly better than automatic band selection.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Hi I'm on ee in the UK so if I were to use band 7 would that be best for standby drain? Also would that give me the best speeds? I'm new to this never done before! Cheers
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
After locking to band, u need to send the screenshot of parameters by dialling *#0011#
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] VITMAD:
So how do I find out my network provider's bands with my phone or did exist any site with it?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
which city, country and operator?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] VITMAD:
My city are Lisbon, my country Portugal and operator are MEO (ALTICE)
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Will have a go now am I best using band 7 or the other bands on the image I posted plz?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
u need to check on band 3 , 7 and 20
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] VITMAD:
nitinmits

I find this site https://www.frequencycheck.com/carriers/meo-portugal

Did you know if the information are correct?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
correct u need to check on band 3 , 7 and 20
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
This is the best download speed from 3,7,20 I've locked to band 7 preffered, does this screenshot mean anything to you I don't know ha
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
can u provide band 7 and 20 screenshot as well?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
That one above is band 7 I will try band 3 and 20 and ssnd
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
This is band 20 and band 3 the other was bamd 7 in which I got best speeds
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
u have not sent band 7 screenshot. Band 3 sent twice
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Strange I've got it locked to band 7 but shows as 3 in the dialler?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
When I try other lte 7 just get no signal bar? 3,7 an 20 are the only ones it shows for EE UK, is the benefit of this to get the best speeds at all times? Cheers
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
u r doing wrong. Dont lock preferred. Scroll to botton and u will se Bnd 7 again wriyten lock to that
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
So i think in your tower there is no band 7 anyenna. You should lock to band 3 as the signal parameters are excellent for band 3 and bandwidth is also 20 mhz which provides good speeds plus its coverage is also good so less battery drain
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Was gonna say there's only preferred band 7 or LTE B7 but LTE B7 gets no signal at all, will check band 3 then again thanks

---------- Post added at 06:26 PM ---------- Previous post was at 06:17 PM ----------

So do you think I should keep at preferred band 7 which shows on dialler as band 3 or shall I just go back to automatic? Cheers for advice
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
No dont select preffered. Lock to band 3 at middle by scrollong down
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
This one?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
This one I mean
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] VITMAD:
Sorry by that but can anybody help me to enter in servicemode to see my selection?

Thanks in advanced
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] russellcausier:
Not sure if you mean the *#0011# in dialler is that the service mode
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Yes Exactly
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
How do I select the band for SIM slot 2?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Presently not possible only slot 1 can be sele3
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Kiran-Kumar:
Thanks, just now noticed it. The lock does not apply on stack 2 in the service menu.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] kai84m:
Great work!

But it's not working for eSim since it is Stack 2 :(
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] fragtion:
After much headache with this issue, I found a method that works where the "Band Selection" menu doesn't work (this method is confirmed working on my Galaxy Note 8). Thanks @fasho:

https://xdaforums.com/t/how-to-lock-lte-band.3681480/#post-74325453

TL;DR: Get org.vndnguyen.phoneinfo (from an apk mirror as it is no longer available on the play store), and then run ServiceMode as root. Follow the linked instructions further to disable unwanted LTE bands.
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Paul Dundigalla:
This method is no longer working after June 2022 update on samsung s21 fe. is there any alternative for non rooted phones?
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] Raphy511:
Thanks a lot

This also allow to disable LTE-CA and save battery
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] nitinmits:
Thanks. If u like u can share my video to others to help
[Samsung Galaxy S20 / S20+ / S20 Ultra Questions & ] goTouch:
It works! Thx