Open Developer Options

woodsytattooman · Apr 9, 2014

I found this earlier and had to try it out.Yes it does work.Open your developer options!
HTC One M8 High Performance Mode developer options - PC Advisor

woodsytattooman · Apr 9, 2014

Although I am not seeing the high performance mode on At&t version.

Demache · Apr 10, 2014

The developer mode enable seems to be similar to other 4.3+ Android phones so that's no news. However, the high performance option seems interesting. Especially for something like emulation which is very CPU intense.

I wonder if the VZW version would have it.

Rdjr74 · Apr 11, 2014

I do not see the high performance mode on Verizon unfortunately.

SolApathy · Apr 11, 2014

I

Rdjr74 said:
I do not see the high performance mode on Verizon unfortunately.

Did you activate developer options?

For those who do not know how:

1. Go to Settings menu on your device.

2. Go to About submenu. In some devices the About submenu will be under

Rdjr74 · Apr 11, 2014

Yes I did that. That option is not there on Verizon.

SolApathy · Apr 11, 2014

Maybe someone from Sprint that has not done the update can chime in. That option may not have been on Sprint either before we got an OTA the other day

sikclown · Apr 11, 2014

SolApathy said:
Maybe someone from Sprint that has not done the update can chime in. That option may not have been on Sprint either before we got an OTA the other day

It was on the Sprint version from day one. The first thing I did was activate developer options out of habit and saw it there.

swerver32 · Apr 12, 2014

Has anyone tried ART?

SolApathy · Apr 12, 2014

I haven't, but that's because some of the apps I have aren't compatible with it, namely Whatsapp. That and the fact that this phone is so fast I doubt I would notice any difference

KOLIO · Apr 12, 2014

swerver32 said:
Has anyone tried ART?

SolApathy said:
I haven't, but that's because some of the apps I have aren't compatible with it, namely Whatsapp. That and the fact that this phone is so fast I doubt I would notice any difference

I switched over to ART before loading up most of my apps & having a buggy issue w/SWIFT KEY (numbers are entered multiple times per keystroke).

Also having an issue w/an app not loading at all (AUTOMATIC CACHE CLEANER).

Gonna switch back to DALVIK & will post w/results.*

*Switching over from DALVIK to ART took quite a bit longer than it did on my GPE MOTO G.Might wanna budget about 20-30 minutes for the transition if you're time crunched.

BRAINZ2013 · Apr 12, 2014

SolApathy said:
I haven't, but that's because some of the apps I have aren't compatible with it, namely Whatsapp. That and the fact that this phone is so fast I doubt I would notice any difference

That's true that ART don't work with some apps such as ROM toolbox . it don't work for the es rootexplorer . the paid version .

BRAINZ2013 · Apr 12, 2014

KOLIO said:
I switched over to ART before loading up most of my apps & having a buggy issue w/SWIFT KEY (numbers are entered multiple times per keystroke).

Also having an issue w/an app not loading at all (AUTOMATIC CACHE CLEANER).

Gonna switch back to DALVIK & will post w/results.*

*Switching over from DALVIK to ART took quite a bit longer than it did on my GPE MOTO G.Might wanna budget about 20-30 minutes for the transition if you're time crunched.

Problem when you switch back my device gave me a pop up of every app saying it forceclose I had to do a FDR to clear . so beware of this .on some devices.

KOLIO · Apr 12, 2014

Some interesting observations:

Switched to DALVIK & managed to load & run AUTOMATIC CACHE CLEANER,no issues.
Switched back again to ART & found same app to be completely uninstalled from my device.(Hadn't seen that on my GPE MOTO G).Talk about coughing up the proverbial hairball....

uke:

Still have the same issues w/SWIFT KEY (strange number input issues). Could be the site that I was entering acct # information with,as it acted exactly the same w/all other variables identical.

Perhaps the SWIFT KEY issue is a bug that the developer needs to take a look at,as my other KIT KAT devices don't have this issue.

a BTW:

Might wanna place your phone next to a fan when switching from DALVIK to ART,the back of the phone gets quite warm.
Probably not enough to cause any harm,but,if repeated numerous times,could possibly zap a little life out of the battery.No one wants that.

Also,when switching from ART to DALVIK,this isn't necessary,it only takes about 3-5 minutes,vs DALVIK to ART's 20-30+ minute switch time.

Here's an informative post on the subject,for those that are interested:

http://androidforums.com/6456609-post1.html

CrimsonPride · Apr 12, 2014

I have been running ART since the day the phone came out on ATT. No problems, none of the apps I currently use have problems with it either, but it's been very stable for me. And the "High performance mode" for the CPU, if what I heard before is correct, that is just used during benchmarks. It was HTC's way of "inflating" benchmarks, where if the phone knows a benchmark is being run, it allows the CPU to run at a higher frequency. Turning it off will only make it to where it will use its stock frequencies during benchmarks.

KOLIO · Apr 12, 2014

The "High Performance Mode" is nowhere to be found on the T-MOBILE variant (AFAICT).

TBH,I'm kinda glad it isn't,as I'd like a bit more control over the setting,other than on/off.

If I feel the need for speed,I'll check out the ATR section in the M8 forum.

vosg · May 2, 2014

I've tried ART but it caused issues when rebooting the phone. It wouldn't shut down properly either.

Blade of 3 · May 16, 2014

Is there a way to access the developer options without connecting to a computer? Also does anyone know if High performance mode automatically enables when higher CPU is necessary or only when enabled?

SolApathy · May 16, 2014

Under "Settings > General > About Device" tap on your "Build number" 7 times (no joke) and it will activate developer options.

BRAINZ2013 · May 16, 2014

No the CPU wont activate if its a higher value . the only way would be to enable the development section .

Blade of 3 · May 16, 2014

SolApathy said:
Under "Settings > General > About Device" tap on your "Build number" 7 times (no joke) and it will activate developer options.

I can't find build number. Is there a different name for it?

SolApathy · May 16, 2014

On sprint it is under settings>about>software information>more build number will be at the bottom

Unforgiven · May 19, 2014

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