yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 10+ Questions & Answers] lacrossev:
I partially blame the size of the sensor as well as the way they guide users through the enrollment process. The standard android fingerprint enrollment process, as i've experienced on my HTC U11 and Razer Phone 2, prompts for more finger edge samples. I actually went through the process on the Note as the software prompts and had mixed results. I then just decided to hit the sensor randomly with some overlap to give it a better overall picture of my finger as opposed to a bunch of samples of the same spot and then a few variants.

If you shine a flashlight at the screen you'll see the sensor size. It is a short rectangle that doesn't seem to cover the area that the fingerprint icon covers. I have an amFilm whitestone-style screen protector and while there is a slight difference, the stock experience was also not that great. I would recommend you try to figure out how you ACTUALLY use the fingerprint unlock. I noticed that while i'm enrolling i'm focusing on pushing with my fingers dead-on, in practice i actually use just the upper right corner of my thumb (if you're looking at the fingernail top-down). When I realized that I trained it with that in mind and it did perform better.

There was mention of the ones in the One Plus devices, which are actually different in that they are optical. Because they light up and read optically they have a more controlled environment than what the ultrasonic sensor on the Samsung phones. I can see someone with a deeper fingerprint patten be able to get better results vs someone with a very faint fingerprint. On oneplus devices though it would just be a different picture, but i'm thinking on an ultrasonic sensor there might not be enough peak and valley information to pass the threshold. Maybe samsung can make the pattern require less data points to match to unlock, but that would also mean it is less secure.

Bottom line is that while the tech has the potential to be more secure than optical under glass, it still has a little ways to go but it is serviceable once you get to it. I don't have big hands so i have to hold the phone in a very specific way to get a good grip on it. Once i figured that out, training the sensor again did yield better results.
[Samsung Galaxy Note 10+ Questions & Answers] FeedupwithSGN10+:
I have the same problem. In sorry you haven't received a resolution, especially from Samsung who manufactured the Galaxy Note 10 Plus. I'm believe they were aware that it did not work with many 3rd party cases with protected screen covers. No matter how you register with screen off or on, the reader is intermittent and doesn't work with the cover. I hope you get the resolution as it will solve my issue as well.
[Samsung Galaxy Note 10+ Questions & Answers] sunking101:
The fingerprint registration process seems very glitchy too but after having experienced an awful 40% success rate with waking the phone using my fingerprint I deleted all the stored prints and started again. The secret is in storing decent prints so keep doing this until the phone unlocks with a 90%+ success rate like mine does now.
[Google Pixel 4 XL Questions & Answers] cryppie:
Could someone test something for me? Make a call and press mute multiple times quickly. Does your phone reboot?

I'm on the December image, rooted with magisk, systemless.

Logcat shows "Telecom: Session: getFullMethodPath: Hit recursion limit!: CARSM.mCR@AQU"

Thanks!
[Google Pixel 4 XL Questions & Answers] airmaxx23:
Mine reboots as well, it's a hot reboot.
[Google Pixel 4 XL Questions & Answers] ShobhitSingh:
Indian SimCards

do indian sim cards work on global rom in 4 xl
[Google Pixel 4 XL Questions & Answers] bigdave79:
Maybe I'm missing something but why would you want to mute and unmute multiple times in succession? I doubt most people would ever encounter this as a real use case scenario.
[Google Pixel 4 XL Questions & Answers] croques:
Picture this scenario: your boss calls asking why you are not at work. You can't - off the top of your head - quickly think of a reason, other than you didn't fancy going in. As you fumble for your words you mute and un-mute the phone. Your boss thinks it is a bad line. But but before he can say he'll call back, the phone crashes. You can now leave the phone off long enough for you to be able to come up with a good excuse for being off work.

Good old Google they think of everything!
[Google Pixel 4 XL Questions & Answers] Paz9:
So it's not a bug it's a feature ?
[Google Pixel 4 XL Questions & Answers] Badger50:
Right! I also might add that if I were to have done that to my bosses at any time....to the unemployment line I would go! And rightfully so! ?
[Google Pixel 4 XL Questions & Answers] cryppie:
Meetings. For me, 25 times causes the crash no matter how fast or slow mute is hit.
[Google Pixel 4 XL Questions & Answers] airmaxx23:
I don't think anyone has a reason to hit the mute button multiple times but it still shouldn't cause the phone to reboot.
[Google Pixel 4 XL Questions & Answers] cryppie:
Guess you haven't been in meetings in a car [emoji3]
[Google Pixel 4 XL Questions & Answers] relaxable:
It's this attitude that gives us "sloppy software" - instead of designing it for what a person can do, don't test or consider things you think someone is "unlikely" to do.
[Google Pixel 4 XL Questions & Answers] fkofilee:
Legit does it to mine too...

Has anybody raised it to google?
[Google Pixel 4 XL Questions & Answers] cryppie:
They told me it would be fixed in a future update. I would hope January's!
[Google Pixel 4 XL Questions & Answers] neo_lithic3K:
I tried it and my phone reboots as well.

BUT warning to others... don't try it because now my phone is acting weird after the reboot. Even when I enter my unlock pattern, it'll go back to a blank screen and then back to a lockscreen again. After a few attempts, it'll remain on "starting pixel..." Only fix was a shutdown and then a power up.... hopefully no lasting effects.
[Google Pixel 4 XL Questions & Answers] hmp32:
Mine reboots as well. When I am on a conference call, I use the mute button like a push to talk feature to keep background noise at a minimum.
[Google Pixel 4 XL Questions & Answers] cryppie:
FIXED! Feb 2020 image.
[LG V20 Questions & Answers] chuckv9779:
Is it possible to get into a lg v20 that is locked without the password.
[LG V20 Questions & Answers] cnjax:
Google how to remove pin code on Android, use the file browser to delete the mentioned files
[Google Pixel Questions & Answers] dieselboy:
I came here because I have a severe battery drain issue. Sometimes I can fix the issue by rebooting the phone and then not using it. This issue has been coming and going I think since android 10 but it may have occurred in android 9. I had this issue a few months ago and the issue stopped on its own. To workaround the issue I was rebooting the phone when I noticed the severe drain and then tried to avoid using the phone.

For example I charged my phone (pixel 1 XL) before I went to sleep. I charged it to about 85% at 11pm. I took it off charge and went to sleep. At 530am I woke and checked the phone to check the time. The battery was at 15% and in power saver mode.. Usually I get 1 day usage (6am to 6pm, with streaming music to my headphones at the gym and messaging throughout the day) and get home with 65% battery. This issue has come back again now that I am traveling abroad.

I reset the phone to factory yesterday and only installed webex teams and whatsapp. The issue persisted yesterday. At lunch, we spent around half an hour eating and the phone was screen off and on the table and the phone dropped from 65% to 55%. I decided to remove webex teams and reboot the phone. The battery remained at 53% for approx 2 hours. I thought eurika, webex teams is the culprit. But unfortunately last night the same battery drain issue occurred and I had to charge the phone again at 5am.

I dont know that the issue is occurring until it is occurring.

The battery usage shows no usage by apps during this issue, and same when I show all device usage - for example I'll have say webex teams using 1% and screen using 1% but the device has dropped 60% of battery and there is no indication of where.

I dont mind to install a custom rom but I have not done any custom installs on this phone at all at this point.

Also I never used NFC until a few months ago for the banking app which I used to have. I just realised NFC was on yesterday and I've just switched it off. I just wont know if this helps until later today when the battery is dropping quickly. Although it just dropped 2% while typing this so I dont think it has helped. I just turned on data saver and battery saver and will see.

I am at a bit of a loss - has anyone else had this problem and found the culprit or a fix?

Update - battery saver and data saver does not stop the battery drain. 2% drop in 20 minutes with phone on the desk with screen off.
[Google Pixel Questions & Answers] dieselboy:
I decided to give up, re-install webex teams and go for breakfast; while leaving nfc off, battery saver on and data saver on. At breakfast, the battery did not drop at all. Uptime is 9 hours 50 minutes (cant remember if I rebooted before breakfast) So almost 10 hours later and I have been using the phone over wifi on occasions and a few phone calls and whatsapp. The battery level is now 55% so it appears that the issue has gone away at the moment.

It's driving me nuts as I cannot work out a trigger. It almost seems like something within the android system is doing something and it's being hidden from the systems battery usage calculation. 3rd party apps also do not show any battery drain but the battery drains. If the battery was faulty then I would expect this issue to not get fixed after reboot (or even by itself). I have reset the phone 2 or 3 times now and the issue is still present afterwards.

Tried to google for answers and didnt really find anything apart from one guy saying his phone was draining and getting hot at the same time. Mine does not get hot.

I suspected malware or something like that but I dont see how it can be possible that malware is there after factory reset.
[Google Pixel Questions & Answers] dieselboy:
OK I think I have made some progress - although can't be sure because this issue does go away and then comes back! However, this time I am refusing to reboot my phone so I can work on it. I am flying back tomorrow at 4am and so I need battery to last as long as possible. I have installed all of my important apps that I need to use. Given the issue is there when I have only 2 apps, the issue cannot be related to the apps I removed so I installed all of the important ones.

What I have done now:

1. turned off dark mode

2. opened the app permissions for the "google" app and changed the location permission from "always" to "only while using the app".

GPS Location is always off unless I am using google maps anyway but it did not stop battery drain previously!

As soon as I changed the permission app for point 2 above, the severe battery drain stopped. Take a look at the screenshot. You can see the severe drain on the left of the graph. Then the very severe drain was when I Was actively using the phone during the issue. Then I charged the phone. Then I changed the permission and you can see the graph have a flat horizontal line which is showing next to zero battery drain! I do not have battery saver or data saver turned on anymore. And I have been using the phone a fair amount.

Touch wood and fingers crossed. May be this will also stop google from emailing me every month with a google map breadcrumb trail of where I have been going.

EDIT - uptime of the phone is 28 hours and counting. Although you can see the charging points in the screenshot.
[Google Pixel Questions & Answers] usernamedoesnotexist:
I have the same issue. My battery was just recently replaced too. I'm going to try the suggestions in your latter posts and see if anything improves.
[Redmi Note 8 Questions & Answers] Ysfzone:
Hi,

I have a chinese Redmi Note 8 (Not 8T)

I want to switch to Global Rom safely and forever..

I want to use my device as a Global Variant ?

Can you Help Me ?
[Redmi Note 8 Questions & Answers] jc9896:
Unlock bootloader, flash Global via Mi Flash, relock bootloader to avoid losing warranty (or don't if you feel like tinkering about)

Unlock bootloader can take a long time though.
[Redmi Note 8 Questions & Answers] Ysfzone:
THANK YOU VERY MUCH

but are you sure i can Lock Bootloader again ??

Because a read in other thread if i lock BL on Another Rom i can break my phone forever !!
[Redmi Note 8 Questions & Answers] jc9896:
After some searching, it may not work (you can apparently only relock on China if that was your original ROM), so you might have to use the phone with a unlocked BL.

Basically, don't attempt to flash Global if you want to keep your warranty.
[Redmi Note 8 Questions & Answers] the_weird_aquarian:
backup data first

unlock bootloader

download fastboot rom and mi flash from here http://c.mi.com/oc/miuidownload/detail?guide=2

while flashing with mi flash select "clean all and lock" to relock bootloader ( or select clean all if you don't wanna relock bootloader)

Done :)
[Redmi Note 8 Questions & Answers] Ysfzone:
Done !
[Redmi Note 8 Questions & Answers] the_weird_aquarian:
:good::)
[Redmi Note 8 Questions & Answers] Isafurniture:
I have redmi note 8 with india rom version

Can i flash global stable rom version over India version ??

Pls reply.

---------- Post added at 08:28 AM ---------- Previous post was at 08:27 AM ----------

Can i flash the global stable rom via twrp recovery...??
[Redmi Note 8 Questions & Answers] Ysfzone:
If you have an unlocked bootloader you can clean flash a global rom over India rom..

Believe me my brother.. global rom not good at all..
[Redmi Note 8 Questions & Answers] the_weird_aquarian:
to switch from indian rom to global rom use fastboot rom and flash via mi flash
[Redmi Note 8 Questions & Answers] Xumarion:
Switch from Global to China/India

Hi there,

I have an EU Global Redmi Note 8 that I bought in UK. I noticed, however, that the call recording function has been pulled from EU devices due to some new nonsense policies so I'd like to switch if possible. I'm just wondering how I could switch from EU to China/India rom, and if possible, lock the bootloader.

Ultimately, I'm happy to switch even if I cannot re-lock, but I'd like to know how even so.

Many thanks :)
[Redmi Note 8 Questions & Answers] the_weird_aquarian:
To switch from EU version to global/Indian use mi flash and flash fastboot rom. I recommend flashing indian rom as it has stock mi dialer which has call recording as global rom has google dialer with no call recording feature.
[Redmi Note 8 Questions & Answers] Xumarion:
Thanks for the info. Will I be able to lock the bootloader if I go from Global to India?
[Redmi Note 8 Questions & Answers] the_weird_aquarian:
I recommend you don't lock the bootloader if in different region rom as it might cause brick....select "clean_all" in mi flash and NOT "clean_all_and_lock". :)
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
hi ,

My Galaxy M20's maximum headphone output level is low for me. I did search my phone's internal memory and i find 2 files in firmware. ''mixer_gains.xml'' and ''mixer_paths.xml''.

I think these 2 files control to audio hardware gain levels but i dont know which line in which file to must be modify ? Other Samsung models files are different. please help me.

My phone info :

Model : SM-M205F

O.S. : Android 9 Pie / Root

thx...
[Samsung Galaxy M20 Questions & Answers] Cherifiali:
Try to use magisk modules if available, or tune the dolby atomos options, that one worked for me.
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
Galaxy M20 ' s maximum headphone output limited by samsung ( approx 800mV peak max ). i edited ''mixer_gains.xml'' file and increase headphone output volume but headphone output immediatly shutdown after first high transient output signal and switch to speaker. headphone output signal is no clipping. 1240mV peak clean output signal but its shutdown and switch to speaker. ( measured by LeCroy WS3024 digital oscilloscope )

i bought this phone 2 months ago but i didn't use it yet because only this reason. please help me.
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
can anyone help me ?
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
hi guys , i'm still can't use my Galaxy M20 because i can't solve low headphone volume problem :( :( :( 7-8 months passed :( :( :( i find a program but it's working for M20's speaker only. not the headphone :( please help...
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
and i attached these 2 original files.
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
??? :( :( :(
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
i downloaded 81 apps for headphone volume boost and i tried 38 apps yet. none work ! i think all apps blocked by samsung in new OS. samsung engineers are working for blocking unofficial apps , modes and hardware capabilities. they are no working for make a better device. stupid visual effects , stupid official apps and thats all. this is my last samsung phone ! i will never buy a samsung phone again ! approx 2 years past and i can't use this ****. ****ing garbage phone ! :mad::mad::mad:
[Samsung Galaxy M20 Questions & Answers] einstein16:
A20 and M20 shares the same settings for earphones so they have the same settings except for the speaker amp. I experienced audio shutdown when I increased the value in mixer_gains.xml so I gone further and realized that the audio threshold and OVP tuning value is set at mixer_paths.xml. The original OVP tuning value is 231 which is not balanced to the gain set at mixer_gains.xml and this causes the audio shut-off as it cannot pass higher than 700 to 800mV peak original set by mixer_paths.xml so I adjusted the value (thinking about the optimized non-audio IC dangerous value) and I managed to increase the maximum gain higher than expected. I tested this with multiple earphones and headphones including AKG earphones and headphones and the sound is clean. Bass is also boosted too.

I edited the xml files posted here so you can try it. I adjusted the values so all you need to do is test it. Be sure to backup the original file in case something goes wrong.

Have a good day!
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
thank you...thank you...thank you...

your modification is ok ! it's working ! my M20 hp output level is equivalent with my old modified S3 phone's hp output now and no clipping. now i can listen music ! thank you !

but i noticed 1 bug. if i plug a 3.5mm stereo jack-to-RCA cable to my M20's hp output ( for mixer or audio amp input ) and if i turn up volume to maximum , M20's hp out generates very high output and shutdown ! this is basicly open circuit for M20's hp output because mixers and audio amplifiers inputs has >10Kohm , >20Kohm or more higher impedance. can you solve this bug ?

lastly : can you increase volume up little bit more ? i want %10 or %15 more. if you can't do it , no problem. i can use it with this level. if you can do it , it's perfect to me.

i also added some pictures about my test conditions and results.

thank you...
[Samsung Galaxy M20 Questions & Answers] einstein16:
In my A20 device I didn't encounter this kind of AUX bug. Maybe it has something to do with your AUX cable or RCA cable because of its resistance. Bigger wires, higher resistance. So your M20 needs to pump out much higher current in order to meet the peak requirements in the output.
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
1 interesting note : these phones are look like has not a normal audio amplifier for hp output. todays high power professional audio amplifiers has very high damping factor. ( not old tube amps ) this means amplifier output voltage never change when are you change load impedance. ( without rail clipping ) these phones hp outputs look like has a big serial resistor or some sensing system doing similar job. hp maximum output level is lower when you use low impedance hp and hp maximum output level is higher when you use higher impedance load or open circuit.

high damping factor is important for quality of sound. for understanding this situation need to some another tests but i didn't because I don't want to deal with anymore. i just want high volume music to my hp :)
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
thank you...
[Samsung Galaxy M20 Questions & Answers] einstein16:
This devices do have Over current, Over Voltage, Overheat protection built into their chips. Those protections have sensitive sensors. If you just want higher input from your headphones, stick to what i've edited. I tried to increase the values above 199 and it's terrible. Distortions and the sound chip/amplifier is overheating because higher voltage, higher current, more output but more heat. So I sticked to the optimized values.
[Samsung Galaxy M20 Questions & Answers] afakkobyab:
ok no problemo. this volume level is ok. thanks to you, I'll be able to use my phone.

now i search a good mp3 player program ( working correctly ofc ) thx 🙂🙃(y)
[Samsung Galaxy M20 Questions & Answers] gilangax:
this is interesting topic, good solution. but is it support an external DAC for SM-M205G? on the samsung community says it doesn't support, but is it accurate? I'm about to buy an external DAC and found this tricky answer
[Samsung Galaxy M20 Questions & Answers] einstein16:
External DAC have their own gains set which you cannot adjust with your device. And as long as your phone works with OTG it should also work with External DACs they automatically route the audio themselves to USB DAC.
[Samsung Galaxy M20 Questions & Answers] gilangax:
the DAC I toldhas no gain or other volume control. it's only 3.5mm female audio jack to type C which you can plug your headphone on it directly to type C port. so can I buy it?
[Samsung Galaxy M20 Questions & Answers] einstein16:
Yes you can. I use Realtek ALC5686 HIFI DAC on my device and it works.
[Samsung Galaxy M20 Questions & Answers] gilangax:
thank you 🤘🏼
[Samsung Galaxy M20 Questions & Answers] Basudevbesra:
Hi, I found this problem solution please do as I say . Go your "/vendor/etc/mixer_path.xml" and edit its flowing this value(

<!-- Output mixer settings -->

<!-- Playback paths -->

<path name="media-headset">

<ctl name="OVP Tuning Value" value="0" />

<ctl name="Detect Threshold" value="0" /> ) you should be zero (0) this two pathe value now will be solve your problem. If any questions about this . Ask me
[Samsung Galaxy M20 Questions & Answers] einstein16:
Those settings aren't meant to be set at 0. That's why it's there in the first place. Setting that to 0 will remove the limit but with the risk of burning your audio chip. It will render the phone useless. Setting that to zero will make the PMIC push too much voltage and current on the audio IC to compensate for the power draw when using the 3.5mm audio jack.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Pebore:
Hopefully, I will get a reply..old phone, lol

So, my cousin sent my grandma a used s2 sgh i727

Locked to AT&T network... I've tried to unlock using unlocking apps after I rooted the phone.. None is working... I don't wanna pay 30$ to unlocking websites for a phone that cost less than 30$ itself... Lol.......

1. Is there a way to unlock it that you think might work?

2. Is there any custom rom that I can just use to flash the phone and escape the locking forever?

I prefer 2 actually.