Overclock ACER LIQUID Froyo / Kernel / ROM - Thanks people who are passing to help us

[Guest NewAngel]

Hi all,

In first, thank to all developpers and lovers which work on ACER LIQUID to provide software (ROM, leak, App, ...).

So now, come back to subject. How overclock an Liquid wich turn on Froyo ?

Sorry I don't have the complete answer, but a part of it.

For memory, Acer Liquid have a 1 GHZ Snapdragon processor underclocked to 768 MHZ. So for purists, overclock start over 1

GHZ. But in this post we will see how increase the frequence and I will use overclock term for all frequencies over 768 MHZ.

You will find bottom different links, Use what you need :

Be careful. This overclock breaks app2s.

List of Bin, to install the last :

http://android.modaco.com/content/acer-liq...act-collection/

I've tested this method on last leak 4.002.08_EMEA-GEN1_05.01.05_A1_PASS (For Liquid 256MB)

Download : http://hotfile.com/dl/80920716/d4ef8d0/4.0...SS_MdB.zip.html

How to flash it :

http://android.modaco.com/content/acer-liq...-acer-liquid-e/

Install Malez Recovery :

http://android.modaco.com/content/acer-liq...easy-installer/

Don't forget to activate USB debugging in Settings / Applications / Development / ...

Install SetCPU : The app is not free, you can buy it on Market, or see this link (free for XDA members).

http://forum.xda-developers.com/showthread.php?t=505419

At this step your phone is ready to prepare overclock :

You can do a Nandroid backup now if you want test different frequences, or in problem case (No waranty of me that it always work .... bla ... bla)

To overclock You need download a new boot.img. Download and copy the file .zip on SD CARD:

http://bit.ly/aKzGgE (Provide by Vache)

Reboot in Malez Recovery and Flash it :

Flash/test menu / Flash zip from SDCARD (no sign check)

Reboot system now

ENJOY, you can have 883 MHZ !

I've tested on :

- Last Acer's leak

- LCR-F 1.0 (because I like it)

- LCR-F 1.1.1

If you install a rom after overclock your phone, you must have to reoverclock. Because Boot.img was writed.

Different ROM proposes methods to overclock our phone, I don't have time to test all.

After search on net, I've find different kernel for Liquid (Acer / PHH / Others ...???). But it's not always easy to find and know their specifications. So the idea for this post.

You can add in post your positive results of overclock, if you precise which important function are lose (3G/2G, Wifi, access to SD CARD, ApptoSD, ...) and what your configuration (Liquid model, Bin, ROM). Thank you.

Now I'm searching how upgrade frequencies.

In hope that will help other persons.

Sorry for my English, I'm not at ease with Shakespeare langage. I speak English as a Spanish cow. :rolleyes:

New@ngel

Edited November 11, 2010 by NewAngel

[Guest NewAngel]

I'm interesting to have more explanation on overclocking our Liquid, so if a "Liquid Master" want to promulgate guidance or explanation I will be happy. I've some questions :

What is difference under "Kernel" and "Boot.img" (compilation ?) for smartphone.

Why overclocking is not possible on all ROM ?

Thank you.

[Guest vache]

This boot was not made to be posted here, and there will be no support for it.

O/C works but it breaks SD if you have an ext2 partition for app2sd, USB/WiFi tethering and maybe other things.

Edited November 9, 2010 by vache

[Guest NewAngel]

This boot is was not made to be posted here.

O/C works but it breaks SD if you have an ext2 partition for app2sd.

Ooops ... :rolleyes:

I hope no rencune :huh:

New@ngel

Edited November 9, 2010 by NewAngel

[Guest Delnar_Ersike]

Indeed, the key to the overclocking is that certain frequencies need to be enabled in the kernel of the boot image. AFAIK, there is no way to reverse engineer the kernel of a boot.img (if there is, I'd like to know about it), so all the boot.img's that contain unlocked frequencies (or those that undervolt existing frequencies) are ones made/built by the community (or rather, certain individuals within the community, who know enough about kernels to build/modify one themselves to work with Acer Liquids). And since these are community kernels, it is natural that not everything works as it should (usually these are related to proprietary drivers, but I don't know too much about kernel development to actually explain the problems with creating a custom kernel).

Edited November 9, 2010 by Delnar_Ersike

[Guest hkstacker]

I flashed this and it went smoothly except now my usb tethering does not work? I had to revert back to pdanet. Any ideas?

I ran quadrant and scored 768, which is an improvement over stock.

Edited November 9, 2010 by hkstacker

[Guest fox3]

thank you for share.

[Guest ARCBOY]

Wowww !!!

Thank you Very Much

I get Quadrant Score = 1007 points :rolleyes:

[Guest NewAngel]

Wowww !!!

Thank you Very Much

I get Quadrant Score = 1007 points :rolleyes:

Good score man ! :huh:

[Guest hkstacker]

so is there anyway the 883 can be bumped further?

[Guest xaueious]

it will be released when it's ready, most likely

there's a good reason why devs aren't posting this

Edited November 9, 2010 by xaueious

[Guest Rajit]

I flashed this and it went smoothly except now my usb tethering does not work? I had to revert back to pdanet. Any ideas?

I ran quadrant and scored 768, which is an improvement over stock.

HOW did you get that theme?

[Guest hkstacker]

HOW did you get that theme?

It's the stock theme, I haven't changed anything?

Only visual change is the Launcher Pro.

Edited November 9, 2010 by hkstacker

[Guest stanleylhs]

Is this working with Liquid E 512MB?

[Guest hkstacker]

Is this working with Liquid E 512MB?

I'm using it on my 512

[Guest NewAngel]

Indeed, the key to the overclocking is that certain frequencies need to be enabled in the kernel of the boot image. AFAIK, there is no way to reverse engineer the kernel of a boot.img (if there is, I'd like to know about it), so all the boot.img's that contain unlocked frequencies (or those that undervolt existing frequencies) are ones made/built by the community (or rather, certain individuals within the community, who know enough about kernels to build/modify one themselves to work with Acer Liquids). And since these are community kernels, it is natural that not everything works as it should (usually these are related to proprietary drivers, but I don't know too much about kernel development to actually explain the problems with creating a custom kernel).

Thanks for this precisions.

[Guest mmick]

This boot was not made to be posted here, and there will be no support for it.

Sorry Vache but why this boot "was not made to be posted here"? Didn´t get it, sorry

[Guest akira.pwr]

Ehm... Me? :rolleyes:

[Guest vache]

Sorry Vache but why this boot "was not made to be posted here"? Didn´t get it, sorry

Because it breaks too many things.

I released it only on twitter for testing pupose.

Edited November 9, 2010 by vache

[Guest vanisleguy1976]

Because it breaks too many things.

I released it only on twitter for testing pupose.

The fact that it can break sd card, etc should act as a deterrent... I believe vache knows what he's talking about. And as it has been pointed out many times before in various other threads, quadrant score isn't necessarily indicative of anything really.

Alas, you can mod your phones as you see fit... It's your hardware after all. But to me, the various roms out in the community are pretty darned good and fast. Many people complain about battery life and high temperatures. Why mess around and risk damage? Especially if one of our honoured developers advises not to?

Just my two cents :-P

[Guest NewAngel]

Indeed, the key to the overclocking is that certain frequencies need to be enabled in the kernel of the boot image. AFAIK, there is no way to reverse engineer the kernel of a boot.img (if there is, I'd like to know about it), so all the boot.img's that contain unlocked frequencies (or those that undervolt existing frequencies) are ones made/built by the community (or rather, certain individuals within the community, who know enough about kernels to build/modify one themselves to work with Acer Liquids). And since these are community kernels, it is natural that not everything works as it should (usually these are related to proprietary drivers, but I don't know too much about kernel development to actually explain the problems with creating a custom kernel).

I'm not specialist of subject, but have you read this : http://www.acer-android.fr/repacker-boot-img-t172.html

[Guest Delnar_Ersike]

I'm not specialist of subject, but have you read this : http://www.acer-android.fr/repacker-boot-img-t172.html

With my limited French knowledge, I still don't see any discussion on how to reverse engineer the kernel part of an unpacked boot.img. As for the other stuff, I know about most of it (though I do prefer to use update.zip's to flash boot images; I know it's slower, but old habits die hard), though I don't know if that parameter on mkbootimg is still needed. All the boot images I've seen so far were compiled from source usually taken from an open-source source (IIRC, Nexus One kernels are the most suitable for Liquids), modified to have more parts work with the Acer Liquid (such as the Camera, GPS, and WiFi, though I don't know how much if the modifying is the kernel and how much are the system libraries), tweaked to allow for the extra frequencies, to undervolt existing frequencies, and/or apply phh's TS driver, then compiled and packaged into a new boot.img with a modified ramdisk as well (don't know the specifics on what is usually modified in the ramdisk other than the boot splash, but oh well).

[Guest xdxdxdxdxdx]

only 883?that not enough……Can u make 1g's one?

[Guest umair9001]

only 883?that not enough……Can u make 1g's one?

As said by Vache, only for test purpose..!! not for public release..

[Guest xdxdxdxdxdx]

As said by Vache, only for test purpose..!! not for public release..

ok,i have not see post of other.but what the meaning of break?don't work forever?