Unresponsive touch screen [REFURBISHED] H910PR

[mothzart]

Hi,

I bought an LG V20 from AliEx, refurbished with a plan on rooting + installing LOS 17.1 ...and, yes, I knew I'm rolling the dice when buying a used device from China.

Unfortunately when the device arrived there were 2 major problems:

1) The phone is not exactly H910 but H910PR (Puerto Rico), after a looooong search I found out one post (on this forum) where a guy tells that H910PR can be rooted and software from H910 (ATT) can be flashed. But ...it's still risky in my opinion.

i.postimg[dot]cc/L57hR1hV/bad-model-V20.jpg

(NEW USER - CANNOT PLACE LINKS!)

2) [MAJOR PROBLEM] The phone's touch screen seems to be not responding when the phone "sleeps" for more then 2-3m. Pressing POWER off and back on solves it, and as long as I am actively using the phone - touch screen reacts ok.

But.. when the phone arrived that non-responsiveness was present much more often.

AND THE BIG QUESTIONS ARE:
1) Is H910PR technically the same as H910, and the ONLY difference is the software (rom)?

2) Do you think that the problem with the touch screen is hardware (i suppose so ( ) or maybe software related.

Those 2 videos will describe my problem better:

streamable[dot]com/vd7dlm
streamable[dot]com/id5xjs
(NEW USER - CANNOT PLACE LINKS!)

Thanks in advance,
R

 

[cnjax]

Hi,

I bought an LG V20 from AliEx, refurbished with a plan on rooting + installing LOS 17.1 ...and, yes, I knew I'm rolling the dice when buying a used device from China.

Unfortunately when the device arrived there were 2 major problems:

1) The phone is not exactly H910 but H910PR (Puerto Rico), after a looooong search I found out one post (on this forum) where a guy tells that H910PR can be rooted and software from H910 (ATT) can be flashed. But ...it's still risky in my opinion.

i.postimg[dot]cc/L57hR1hV/bad-model-V20.jpg

(NEW USER - CANNOT PLACE LINKS!)

2) [MAJOR PROBLEM] The phone's touch screen seems to be not responding when the phone "sleeps" for more then 2-3m. Pressing POWER off and back on solves it, and as long as I am actively using the phone - touch screen reacts ok.

But.. when the phone arrived that non-responsiveness was present much more often.

AND THE BIG QUESTIONS ARE:
1) Is H910PR technically the same as H910, and the ONLY difference is the software (rom)?

2) Do you think that the problem with the touch screen is hardware (i suppose so ( ) or maybe software related.

Those 2 videos will describe my problem better:

streamable[dot]com/vd7dlm
streamable[dot]com/id5xjs
(NEW USER - CANNOT PLACE LINKS!)

Thanks in advance,
R

I'd return it and get my money back and get another variant that's easier to root with a lesser chance of issues

Sent from my LG-H910 using XDA Labs

 

[mothzart]

well...

I thought I was buing H910 (ATT), that's how the damn chinese seller described it, not a word about some particular phones being H910PR. And YES, I know the rooting of V20 is kinda hard, but at this point, I spent approx. 2 months searching for the right phone (for the right price too), and the LG V20 is in my opinion GREAT. By now I know the root procedure almost "by heart" ;P

Also all parameters beside ...my #1 priority was that the phone has to be supported by LOS 17.1 (as i want to degoogle my phone - i'm a big privacy/security/anonymity freak, though still learning and transitioning... )

If LG would still sell V20's (new) at a reasonable price - I would pay double (this refurbished phone cost was approx. 80$ + 20$ LIPO Perfine baterry). Beside that ONE "glitch" and ONE misinformation (h910pr != h910) I really fell in love with this phone (even with the "silly" second screen, which in LAOS 17.1 is integrated).

If it wasn't China I would return it the same day I recieved it, but sending it so far (i'm from PL) is quite a hassle.

But back to the topic ...do you think that this "GLITCH" with non-responding digitizer after 3+ minutes of standby (as seen on the video - BTW: sorry for the HQ) is software or hardware related? What does your gut say?

And is there any way to check this without unreversable changes by elimination?
1) I could elimnate SOFTWARE fault. But I am unable to find a way to backup (in case it's not software) dumped files from LGUP. Dumping went OK - but the result files are useless (not KDZ!)

2) I could eliminate HARDWARE fault. ...NOPE, wait I CAN'T - there's a pseudo-warranty sticker so I cannot unplug+clean+plug again display cables in the phone internals. (From repairing my LED TV i found out that dirty connector cables can result in e.g. inverted colors - some IPA cleaner and ta-da!)
Mouse connected OTG?

WHAT DOES YOUR GUT SAY?

 

[cnjax]

well...

I thought I was buing H910 (ATT), that's how the damn chinese seller described it, not a word about some particular phones being H910PR. And YES, I know the rooting of V20 is kinda hard, but at this point, I spent approx. 2 months searching for the right phone (for the right price too), and the LG V20 is in my opinion GREAT. By now I know the root procedure almost "by heart" ;P

Also all parameters beside ...my #1 priority was that the phone has to be supported by LOS 17.1 (as i want to degoogle my phone - i'm a big privacy/security/anonymity freak, though still learning and transitioning... )

If LG would still sell V20's (new) at a reasonable price - I would pay double (this refurbished phone cost was approx. 80$ + 20$ LIPO Perfine baterry). Beside that ONE "glitch" and ONE misinformation (h910pr != h910) I really fell in love with this phone (even with the "silly" second screen, which in LAOS 17.1 is integrated).

If it wasn't China I would return it the same day I recieved it, but sending it so far (i'm from PL) is quite a hassle.

But back to the topic ...do you think that this "GLITCH" with non-responding digitizer after 3+ minutes of standby (as seen on the video - BTW: sorry for the HQ) is software or hardware related? What does your gut say?

And is there any way to check this without unreversable changes by elimination?
1) I could elimnate SOFTWARE fault. But I am unable to find a way to backup (in case it's not software) dumped files from LGUP. Dumping went OK - but the result files are useless (not KDZ!)

2) I could eliminate HARDWARE fault. ...NOPE, wait I CAN'T - there's a pseudo-warranty sticker so I cannot unplug+clean+plug again display cables in the phone internals. (From repairing my LED TV i found out that dirty connector cables can result in e.g. inverted colors - some IPA cleaner and ta-da!)
Mouse connected OTG?

WHAT DOES YOUR GUT SAY?

I suspect it's a software issue, however I stand by my recommendation to return it, if your intention is to root and cross flash the firmware, I seen numerous people who crodsflashed the 910pr and lose all cellular connectivity.

Sent from my LG-H910 using XDA Labs

 

[mothzart]

I suspect it's a software issue, however I stand by my recommendation to return it, if your intention is to root and cross flash the firmware, I seen numerous people who crodsflashed the 910pr and lose all cellular connectivity.

Sent from my LG-H910 using XDA Labs

Hmm... some breaking news. I just installed (F-Droid) AlwaysOn (Always-On-Display), set the hour/date/bat% to display (when off) AND... everything A.O.K (?!?).

My gut feeling is that somehow the screen digitizer when "woken up", at first doesn't receive enough V/A, but when I "wake" him again the amount is enough.

If there would only be a way to check this V20 on a different soft :/ (but I don't know how to put back DUMP files from LGUP back to the phone). Otherwise I would flash H915 KDZ (as the root instruction says)

I also found this when it comes to H910PR: https://forum.xda-developers.com/showpost.php?p=76370024&postcount=20

EDIT: Just now I found in the FOOTER of the member that posted info on how to root and croos-flash H910PR (above):
"Xiaomi Mi Mix 2 6/64GB
LG V20 - Bricked H910PR Board, Then dead cellular on H910 board. Nostalgia in my desk drawer"

...BRICKED H910PR Board

...life is unfair...

 

[mothzart]

Hi guys!

QUICK QUESTION: Does H910 has polish language? (could someone check this, thanks)

Because one of the sellers on AliEx claims that only H910PR has polish language, H910 does not - it's hard to believe, but maybe that is why they sent me the H910PR at first.