/system/build.prop tweaks

wmi543 · Apr 24, 2011

I'm not responsible to any damage which is caused by applying any modification listed below to your phone.

Backup
If you made mistake to this file, you phone will not boot in gui, so you should always backup the file before you make any change to it. Just use any file manager to copy the file to your sd card or your pc.

Restore
If you have a Linux machine you can mount the /system partition while plugging in with the purple screen (vol up + vol down + power).
Easiest way: get Ubuntu, put your phone in purple screen, plug in with USB, you will see the system partition at your Ubuntu desktop.
The hard way: if the /system partition is no accessible under purple screen mode (such as in the latest 528 rom), you can use adb push the backup file back, search the web for details about how to use adb.

I'm digging the build.prop, some apps can do some of these tweaks for you, but I prefer typing myself. You need to reboot the phone to take effect.

1. windowsmgr.max_events_per_sec=75
add this new line to make UI more responsive, the bigger the value the more responsive, I've tried 90, too fast, fall back to 75, still quite fast

2. ro.config.hw_menu_unlockscreen=false
change value from "false" to "true" to enable menu key unlocking screen

3. ro.sf.lcd_density=240
change to 225 to increase the resolution of display, as a result, the size of icon on home page and fonts of list (of file manager or contact) become smaller, the smaller the value the smaller size of icon and fonts

4. dalvik.vm.heapsize=24m
increase the value to 32m~48m to increase stability and performance, tested but doesn't see much effect so far

admantium · Apr 25, 2011

all so if you tried games like nova or brother in arms that have black screen or graphic probs do this they now all work
go to /system/build.prop and edit it to this then close and turn the phone off / on do a build.prop DO A BUILD.PROP BACKUP FIRST ALLWAYS A MUST BEFOR PLAYING AROUND.
once the phone is on go to settings about phone model number and it will say Desire HD.
Then download games for the htc desire hd and it works.
if you want it back to standed just replace it with the backup

298800577 · Apr 25, 2011

i think the suggestions are great!
big thx!!!

ibnefahim · Apr 25, 2011

thanks for the share

blup1 · Apr 25, 2011

Do I just change the name, where it says build.prop now?

admantium · Apr 26, 2011

sorry there are still some games that wont work like brother in arms 2 and modern combat black pegasus but all the others work like
splinter cell
sandstorm
n.o.v.a.
and so on

admantium · Apr 26, 2011

your phone hast to be rooted and use root explorer and go to
/system/build.prop and open and edit the text then reboot your phone

adrdsouza · Apr 27, 2011

backed up the build.prop and made the changes. On restart it hangs on boot screen (huawei name and logo) I have to remove the battery to switch off. tried connecting to the PC to restore build.prop but it doesnt load the phone memory. Only launches the mobile partner autostart. Also tried updating by adding update.zip to sd card but says signature verification failed. Tried lading general update from huaweidevice.com onto dload directory on sd card, Just shows purple screen on booting with power, vol up and down. Please advice.

simplistian · Apr 27, 2011

adrdsouza said:
backed up the build.prop and made the changes. On restart it hangs on boot screen (huawei name and logo) I have to remove the battery to switch off. tried connecting to the PC to restore build.prop but it doesnt load the phone memory. Only launches the mobile partner autostart. Also tried updating by adding update.zip to sd card but says signature verification failed. Tried lading general update from huaweidevice.com onto dload directory on sd card, Just shows purple screen on booting with power, vol up and down. Please advice.

If you have a Linux machine you can mount the /system partition while plugging in with the purple screen (vol up + vol down + power).

Easiest way: get Ubuntu, put your phone in purple screen, plug in with USB, you will see the system partition at your Ubuntu desktop.

adrdsouza · Apr 29, 2011

Thank you..a mate uses linux so went over and it worked like a charm. I hadn't put the 'm' at the end in 'dalvik.vm.heapsize=24m' but it is sorted now. Thanks again.

nekisia · Apr 29, 2011

Hi there.Is there any value in build.prop file to decrease the time that the screen rotates?I measure that the default time is about 1sec.I want it 500ms or lower.

levibuko · May 1, 2011

ive root and root explorer, but when i try to edit the build.prob it says that its read only rom .
whats the problem?
sry for my bad english

Poulsen8r · May 1, 2011

In the top right hand corner there is a button which says 'mount r/w' press it and your filesystem will be read/write. Then make the changes to build.prop then press the button again then reboot.

Piron · May 1, 2011

volume headphones?

Where can I find the file corresponding to the volume of the sound through headphones? A similar problem occurred on the ZTE, but was repaired in the new ROM.

iamelton · May 1, 2011

Piron said:
Where can I find the file corresponding to the volume of the sound through headphones? A similar problem occurred on the ZTE, but was repaired in the new ROM.

/system/etc/hwVolumeFactor.cfg

nekisia · May 1, 2011

iamelton said:
/system/etc/hwVolumeFactor.cfg

I found the compination of speaker=80 and wired_headset=80 pretty cool.Has anyone found a better setting?

Piron · May 1, 2011

headphone volume

80 is too much. For me the best settings are:
- speaker 75 (default)
- Headphones 70 (higher values will cause the overload of sound)
With this setup is really cool

.

Piron · May 3, 2011

Swype

The original ROM is installed Swype keyboard, but not in the Polish language. It is not possible to uninstall Swype and you can not install a new keyboard. Despite the ROOT system does not allow the removal of the keyboard ("cust/hw/ideos_x5/app / "). Does anyone know how to remove the keyboard, or where to replace your dictionary?

magictwins · May 17, 2011

adrdsouza said:
Thank you..a mate uses linux so went over and it worked like a charm. I hadn't put the 'm' at the end in 'dalvik.vm.heapsize=24m' but it is sorted now. Thanks again.

unfortunately I've got the same problem with you, I changed a file's name in the system/ directory now the phone bricks. I mounted it on mu ubuntu laptop and found that file but it says I have no permission to change it back...what should do now?

edit: never mind, I got it solved with sudo. I am a stupid linux noobie.

sentiment · May 17, 2011

I just opened the file, but there's no "windowsmgr.max_events_per_sec" in it, i found the rest (2-4), does someone know why?

Edit: after applying the B160 ROM, i found this line, works great

/system/build.prop tweaks

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