[Q] Miracast installation how-to (Project from Kensuke)

Hi,

The project this question is about:

Miracast on "Older" Device:
(Project can be found here: [nourl]https://github.com/kensuke/How-to-Miracast-on-AOSP/wiki[/nourl])
I'm very thankful for the work of Kensuke and his project to bring Miracast to the Nexus 7 2012 Model. I've been constantly watching it and finally its out for 4.4.2!

My problem is:

I unlocked + rooted my Nexus 7 via the Nexus Root Toolkit 1.8.0 with my current Android 4.3 Jelly Bean. I installed the "Team Win Recovery Project" but now I'm stuck on how to proceed to get the ROM from Kensuke.
Do I have to install 4.4.2 stock first or can I somehow install directly the .zip File for the "grouper" Wifi Nexus 7. A few instructions or a guide on how to install from 4.3 to 4.4.2 miracast rom would be awesome

I'm relatively new to the whole rooting scene so please be patient with me
Any help is very much appreciated!



Best regards

Halcyon

s107ken said:

Hi, I'm Kensuke, thanks your using my ROM.

what error happen?
KK rom required latest recovery. such as TWRP 2.6.3.1

Click to expand...

Click to collapse

Not really an error.
I just need to know how to get from rooted stock 4.3 with TWRP to 4.4.2 miracast ROM from you.

Do I have to install 4.4.2 stock first or can I just straight go to 4.4.2 miracast from your ROM?
And how can I install your rom? I put it on my device and then?
Looking for kind of a short/quick guide.

Thanks for replying so quickly and your great work, kensuke

s107ken said:

OK
my device N7 2012 3G "tilapia" example. if your device is grouper, substitute tilapia/grouper .

Files
1) stock 4.3 - nakasig-jwr66y-factory-bdbb7bd7.tgz
2) recovery - openrecovery-twrp-2.6.3.1-tilapia.img
3) 4.4 ROM - 20131222_mira01_aosp442r1_tilapia-ota-eng.zip

latest Miracast ROM links
http://xdaforums.com/showthread.php?t=2515833


How to flash 4.3 to 4.4
1) put 4.4 ROM on sdcard


2) goto recovery


3) recovery operate
wipe Data / Cache / Dalvik, Flash 4.4 ROM, reboot

Only this. Stock 4.3 to Custom 4.4 directly.
If reboot-loop happen, Full Wipe needed.


Warning!
My ROM didn't contain gapps and SuperUser.
Your data should back up before flashing.

Click to expand...

Click to collapse

First of all thanks for helping me
Good guide so far I followed all your instructions, but I get the following error on the part 3) "Flash 4.4 ROM"

Log from TWRP v2.6.3.1

Updating partition details...
Installing 'sdcard/20131222_mira01_aosp442r1_grouper-ota-eng.zip'
Checking for MD5 file...
Skipping MD5 check: no MD5 file found.
Error flashing zip 'sdcard/20131222_mira01_aosp442r1_grouper-ota-eng.zip'
Updating partition details...

Click to expand...

Click to collapse

Is there a way to give you more than that log? Or do you know whats the problem here?
Thanks in advance for all your great work on the project and the help you have provided so far!

s107ken said:

I have only tilapia.

Current ROM - Factory 4.3 - JWR66Y - nakasig-jwr66y-factory-bdbb7bd7.tgz


download mira roms from google drive, check md5 carefully

20131222_mira01_aosp442r1_tilapia-ota-eng.zip
md5sum:f642d88304b86cd788e09c1e0d06ff82

20131222_mira01_aosp442r1_grouper-ota-eng.zip
md5sum:6f60ec33438fc9b6d9ad355ffbaf676b


Flashing log...

Code:

Updating partition details...
Installing '/sdcard/20131222_mira01_aosp442r1_tilapia-ota-eng.zip'...
Checking for MD5 file...
Skipping MD5 check: no MD5 file found.
  // about 30~ seconds
script succeeded: result was [/system]
Updating partition details...

Code:

Installing '/sdcard/20131222_mira01_aosp442r1_grouper-ota-eng.zip'...
Checking for MD5 file...
Skipping MD5 check: no MD5 file found.
This package is for "grouper" devices; this is a "tilapia".
E:Error executing updater binary in zip '/sdcard/20131222_mira01_aosp442r1_grouper-ota-eng.zip'
Error flashing zip '/sdcard/20131222_mira01_aosp442r1_grouper-ota-eng.zip'
Updating partition details...

I don't know your trouble. maybe download error?

Click to expand...

Click to collapse

I redownloaded the file and checked md5 before, it didn't work because on mac it automatically first extracts your zip file. I downloaded it now without extraction and it worked! Thank you so much for your help.
Installed all google apps after that, worked like a charm!!