Android port looking promising?

gbjohnson · Jul 6, 2012

As far as compatibility goes, I was looking up the parts list for the Lumia 900 and found that virtually all of the parts are compatible and are in use with current android phones.
Part Model # Andriod support Android phone with part
Processor Qualcomm Snapdragon S2 (APQ8055) YES (lots)
GPU Adreno 205 GPU YES HTC Desire S
Modem Qualcomm MDM9200 3G/4G YES HTC Vivid
Touch Atmel mXT224 touchscreen controller (MXT-N0K1 CCU-1R0 1G3818B) YES HTC EVO 4G
WiFi Broadcom BCM4329 (BCM4329EKUBG) YES (Cyanogen mod)
RF Tranciver Qualcomm QTR8600 (QTR8615L ACV313.0 H41470A7) YES HTC Thunderbolt
GSM/EDGE Avago ACPM-7868 YES Driod 4
USB SMSC USB2512B YES HTC Thunderbolt

All that needs to be done is accsess the bootloader and compile a kernal and grab the exstention from CM...

Nettwerk · Jul 6, 2012

Sounds interesting, I'll be more glad to get work WP8 on Lumia 900.

Will_nonya · Jul 7, 2012

An Android port sounds like an interesting science project but I agree that I'd rather see it get WP8.

fpoon · Jul 8, 2012

That is, if we can get the bootloader unlocked.

gbjohnson · Jul 8, 2012

well then, lets get started. The dev board for the lumia 900 is sad.

gbjohnson · Jul 9, 2012

OK I see the Lumia 710's and Lumia 800's use a nokia bootloader and the Lumia 900's use a Qualcom boot loader. Is it similar to any other devices?

fpoon · Jul 10, 2012

gbjohnson said:
OK I see the Lumia 710's and Lumia 800's use a nokia bootloader and the Lumia 900's use a Qualcom boot loader. Is it similar to any other devices?

It's the other way, 710/800 use the Qualcomm and 900/newer 710 and 800 uses Nokia. Nokia bootloader isn't flashable at the moment, but I saw from another post that it is possible to flash the Qualcomm bootloader to 710. Maybe the same trick can be used also on the 900.

kenikh · Jul 10, 2012

This thread lives in bizarro world.

There will be a WP8 port before Android. Porting is all about the boot loader and drivers - the real hardcore devs that can pull this stuff are (mostly) doing other stuff, like building CM10 and Linaro.

gbjohnson · Jul 10, 2012

kenikh said:
This thread lives in bizarro world.

There will be a WP8 port before Android. Porting is all about the boot loader and drivers - the real hardcore devs that can pull this stuff are (mostly) doing other stuff, like building CM10 and Linaro.

As you said, it is about drivers. Everything already has drivers for android. As far as windows the only things I see working would be the processor, and wifi. And ideally it looks like 2.3 would be a better hardware/software match. Although jelly bean looks interesting...

jmhalder · Jul 10, 2012

I don't doubt that it would be possible to make a kernel, but as of now, its impossible to bootstrap that kernel. Obviously someone needs to unlock this bootloader!

gbjohnson · Jul 10, 2012

I agree with you. Priority is boot loader. The kernel will be a PITA. At least that opens the doors to custom WP roms.

surya467 · Jul 10, 2012

http://xdaforums.com/showthread.php?t=1587650

guys the thread for unlocked 710 and some 800
and every other things you'll need is
http://xdaforums.com/showthread.php?t=1599401

Jump in if anyone has any ideas.

fpoon · Jul 10, 2012

surya467 said:
http://xdaforums.com/showthread.php?t=1587650

guys the thread for unlocked 710 and some 800
and every other things you'll need is
http://xdaforums.com/showthread.php?t=1599401

Jump in if anyone has any ideas.

Thanks, I was also looking at this thread.

How did you get the files in step 4?

http://xdaforums.com/showthread.php?t=1721355

kenikh · Jul 10, 2012

The bootloaders referenced in the above posts were on early release 710 and 800 devices. These phones were shipped with a Qualcomm diagnostic bootloader, either accidentally or because the secure Nokia bootloader wasn't yet ready. Either way, only 710 and 800 phones with the early Qualcomm bootloader are unlocked for flashing custom ROMs, which is a VERY small subset of devices. Nokia bootloaders are locked down tighter than a frog's ass.

The Qualcomm bootloader can apparently be flashed onto the 710, but cannot currently be flashed onto later 800 or 900 devices. The Nokia bootloader on these newer devices is locked against downgrades and there are no known exploits at this time.

As was said above, solve the bootloader problem first, then jump into kernel and driver development. Considering how much trouble the locked bootloaders on WP7 devices are giving some EXTREMELY capable devs, we are a long way away from unlocked bootloaders on these devices. It will take a lot more developer interest and involvement to get there.

gbjohnson · Jul 10, 2012

So suppose that you could inject code (even an app) into a backup/restore in Tango, what would the result be.

kenikh · Jul 10, 2012

gbjohnson said:
So suppose that you could inject code (even an app) into a backup/restore in Tango, what would the result be.

Considering that Heathcliff74 has just now begun to understand how the code signing works for installed applications, modifying infrastructural code via injection seems pretty far off, too. We don't even know what the injection vector would look like, much less expect to try something and have success. Injecting code without knowing EXACTLY how to sign it would result in the OS code refusing to run. If you tried this with the bootloader, you might even brick the device.

Since no one other than Microsoft has access to the OS source code, doing this kind of work is exponentially more difficult (than Android, for example). And don't expect to have much luck decompiling code as complicated as an Operating System. CE is still pretty complicated and what's built on top of CE to make WP7 what it is...that's pretty gnarly, too.

gbjohnson · Jul 10, 2012

And just for kicks has anyone checked if the lumia 710 + 800's nokia or qualcom boot loaders are similar to the 900's?

kenikh · Jul 10, 2012

gbjohnson said:
And just for kicks has anyone checked if the lumia 710 + 800's nokia or qualcom boot loaders are similar to the 900's?

I think that Heathcliff might have run a diff against the firmware package updates to the 900 when they last shipped, but didn't hear the outcome of his analysis.

gbjohnson · Jul 10, 2012

kenikh said:
I think that Heathcliff might have run a diff against the firmware package updates to the 900 when they last shipped, but didn't hear the outcome of his analysis.

I tried looking for an image to compare with, i found a 800's but nothing on the 900.

kenikh · Jul 11, 2012

gbjohnson said:
I tried looking for an image to compare with, i found a 800's but nothing on the 900.

I thought I had a 900 image from the second firmware update, but can't find it now. Must have deleted to save space on my (waaay too small) SSD.

Android port looking promising?

Member

Senior Member

Senior Member

Member

Member

Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Member

Senior Member

Similar threads

Top Liked Posts