[Android Software/Hacking General [Developers Only]] devillnside:
ok, so im running cm7(void # forever) on my optimus one with the latest market 3.4.4 & since something i tried out worked for me & my wife(running stock 2.3.4 on her samsung galaxy fit(GT-S5670)@100dpi) thought i should share this in case it helps.did not see it anywhere on xda when i searched so hoping that i did not post a already done topic in a new thread.

this is my first post so if i screw this up feel free to bash me :o

this is what u need to do step by step:

a)use root explorer or any other similar file explorer to go to the root of your device

b)scroll down to find the "system" directory & select to enter the folder

c)once inside remount system directory from read/only(r/o) to read/write(r/w)....(as shown in image 1 & 2)

d)scroll down to the build.prop file & long press for options and then select "open in text editor" (as shown in image 3 & 4)

e)once inside your build.prop,scroll down to find the line "ro.sf.lcd_density" (as shown in image 5)

f)my device has a default density of 160 and as you can see i changed it to 140 so go ahead & set the density you want for your device

g)now just save the changes & exit(image 6)

h)as you exit you will be notified that your original build.prop has been backed up to a file named "build.prop.bak" & you will find it right there in the system directory(image 7)

i did move this file out of the system directory & placed it on my sdcard!! didnt want any extra files or backups with the default settings in them just lying there you know!!!! just in case!!!! :confused: dont really know whether that matters any bit at all

now reboot your device & your dpi has changed. go into market & see if all the apps that are compatible with your device are still showing so.

note:

the only catch is that apps(e.g ZIP Themer) that do not scale well will NOT,as the whole "compatibility mode on/off" option in LCD density changer app is ignored here. just gotta make your peace with that.

i attached some screenshots of the market showing apps in full & functional compatibility on my device runnin

g @ 140dpi

(UPDATE) Apps Installing despite market showing incompatibility

Ok, so my wife was fidgeting around in the market & she showed me something amazing. apps that should be compatible but are not can be still installed. apparently my precious hack was not 100% effective:( A few apps still showed incompatibility. But they can be installed too. Here's how you do it.

a)go to settings, select applications & then select manage applications.

b)find and select market & then select clear cache(trust me its needed)

Now you can go & search your desired app in the market

c)Choose the app and hit install before the whole app page loads,as in, the screenshots, reviews & details etc.

d)Choose accept & install and voila!!!!!!!!!!!!!!! You are installing an incompatible.

Attached some screenshots for proof!!!!!!!!!!! :D :p

This doesnt work anymore so if any of u wanna fix market compatibility issues please refer this link:

http://xdaforums.com/showpost.php?p=20624277&postcount=13

its not my work so please thank the op for his efforts on this if & when it worls for u :)