[ROM][DISCONTINUED] CyanogenMod 12.1 for HTC One M8 Dual SIM

[bgcngm]

CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.1.x (Lollipop), which is designed to increase performance and reliability over stock Android for your device.

#include <std_disclaimer.h>
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.

CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. You will need to provide your own Google Applications package (gapps). CyanogenMod does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for CyanogenMod is available in the CyanogenMod Github repo. And if you would like to contribute to CyanogenMod, please visit our Gerrit Code Review. Your changelog is whatever was merged into gerrit.

GPL compliance:

• Device tree source code: CyanogenMod/android_device_htc_m8d
• Kernel source code: CyanogenMod/android_kernel_htc_msm8974

Broken:

• Nothing!

Working:

• Everything except 'broken' stuff

Compatibility:
This build is compatible with all M8 Dual SIM variants (m8dug and m8dwg).
It is based off the HTC's Android 5.0.2 firmware, binaries and kernel.

Downloads:

• Official download links

Installation:

• Reboot to recovery (TWRP by @Captain_Throwback) - Direct link
• Wipe /system, /data and /cache
• Install CM package
• Install [optional] Google Apps package (TK GAPPS by @osm0sis and @TKruzze) - Direct link

Credits & collaborations:
This work is due to efforts from everyone involved in M8 development with some changes from myself. The CyanogenMod team would like to thank everyone involved in helping with testing, coding, debugging & documenting! Enjoy!

Device wiki:

• Official wiki link

XDA:DevDB Information
CyanogenMod 12.1, ROM for the HTC One (M8) Dual SIM

Contributors
bgcngm
ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.4.x
ROM Firmware Required: LP firmware
Based On: CM12.1

Version Information
Status: Discontinued

Created 2015-07-26
Last Updated 2016-12-28

 

[PresidentCupcake]

does speaker audio work??

as in no speaker distortion

 

[bgcngm]

Sure, all audio works, except incall audio as stated above. And it is only in a certain condition.

 

[PresidentCupcake]

Sure, all audio works, except incall audio as stated above. And it is only in a certain condition.

sorry I meant speaker distortion

 

[bgcngm]

No speaker distortion at all.

 

[PresidentCupcake]

No speaker distortion at all.

sweet

 

[bgcngm]

I highly appreciate if any dev wants to join to this effort of bringing full CM support to M8 Dual SIM. Been trying to fix this incall audio issue for a month now, without success.

 

[bgcngm]

Update regarding the strange NFC issue.

An initial logcat pointed this out:

I/NfcService( 2787): Enabling NFC
D/NFCJNI  ( 2787): Start Initialization
[COLOR="Red"]E/NFC-HCI ( 2787): Could not open /vendor/firmware/libpn544_fw.so or /system/lib/libpn544_fw.so
W/NFC     ( 2787): Firmware image not available: this device might be running old NFC firmware!
[/COLOR]D/NFCJNI  ( 2787): NFC capabilities: HAL = 8150100, FW = b10129, HW = 620003, Model = 11, HCI = 1, Full_FW = 1, Rev = 41, FW Update Info = 0
D/NFCJNI  ( 2787): phLibNfc_SE_GetSecureElementList()
D/NFCJNI  ( 2787): 
D/NFCJNI  ( 2787): > Number of Secure Element(s) : 1
D/NFCJNI  ( 2787): phLibNfc_SE_GetSecureElementList(): SMX detected, handle=0xabcdef
D/NFCJNI  ( 2787): phLibNfc_SE_SetMode() returned 0x000d[NFCSTATUS_PENDING]
I/NFCJNI  ( 2787): NFC Initialized

The error is gone after taking that proprietary file from the stock ROM:

D/NFCJNI  ( 2904): Start Initialization
D/NFCJNI  ( 2904): NFC capabilities: HAL = 8150100, FW = b10129, HW = 620003, Model = 11, HCI = 1, Full_FW = 1, Rev = 41, FW Update Info = 0
D/NFCJNI  ( 2904): phLibNfc_SE_GetSecureElementList()
D/NFCJNI  ( 2904): 
D/NFCJNI  ( 2904): > Number of Secure Element(s) : 1
D/NFCJNI  ( 2904): phLibNfc_SE_GetSecureElementList(): SMX detected, handle=0xabcdef
D/NFCJNI  ( 2904): phLibNfc_SE_SetMode() returned 0x000d[NFCSTATUS_PENDING]
I/NFCJNI  ( 2904): NFC Initialized

NFC seems to initialize correctly in both cases, but I can't exchange data with other devices. I was not expecting this kind of issue at all because standard M8 has the same NFC chip.

 

[bgcngm]

Just one clarification regarding the incall audio issue. The noticed pattern is:

• SIM 1 network mode set to LTE or 3G (SIM 2 network mode is automatically set to 2G) > incall audio works on calls using SIM 1, but not SIM 2
• SIM 2 network mode set to LTE or 3G (SIM 1 network mode is automatically set to 2G) > incall audio works on calls using SIM 2, but not SIM 1

 

[bgcngm]

New updates on the incall audio issue. I finally got incall audio on the SIM card that is not set to LTE/3G. It was done by forcing a different PCM device to be opened during the call. Now I get the exact opposite behavior, than the one described on previous post.

The source code needs some changes in order to decide which PCM device should be opened, taking into account which SIM is calling and what network mode is set.

EDIT: New update released. Incall audio issues are fixed.

 

[osm0sis]

Can you change that to "by @TKruzze and @osm0sis"? Thanks!

 

[bgcngm]

It has been done!

 

[bgcngm]

New updates on the incall audio issue. I finally got incall audio on the SIM card that is not set to LTE/3G. It was done by forcing a different PCM device to be opened during the call. Now I get the exact opposite behavior, than the one described on previous post.

The source code needs some changes in order to decide which PCM device should be opened, taking into account which SIM is calling and what network mode is set.

I have been testing one change that appears to be working pretty well. Hope to come with a beta release within the next few days.

 

[bgcngm]

Moved from Alpha to Beta release and the download link is updated with the new version. The incall audio issue is fixed for good and the only problem now is NFC. Please test NFC and post your comments.

 

[consuldore]

Everything works great so far.

Had some problems with the last version.
Sometimes both sim cards lost connection and only a reboot could make them work again.

Will test this ROM the next day's and then report back.

Thanks again for your hard work.


Sent from my HTC One_M8 dual sim using XDA Free mobile app

 

[bgcngm]

Could you please test NFC? Did you have the latest LP firmware flashed?

Sent from my HTC One_M8 dual sim using Tapatalk

 

[consuldore]

Sorry, I don't have any NFC devices to test with.

Yes, I think so. Installed the latest OTA update before installing this ROM.


Sent from my HTC One_M8 dual sim using XDA Free mobile app

---------- Post added at 12:00 PM ---------- Previous post was at 11:46 AM ----------

Just checked my settings and I'm on firmware 4.30.401.15

Sent from my HTC One_M8 dual sim using XDA Free mobile app

 

[bgcngm]

Okay, same here.

 

[bgcngm]

I don't know if those users using this ROM have already noticed, but it allows both SIM cards (only one at a time) to be set to LTE/3G. Huge difference when compared to the stock Sense ROM, where SIM2 can only work in 2G.

I'm running CM for more than a month now and, with the latest beta release, it can be perfectly considered as a daily driver.

 

[consuldore]

No, haven't noticed that. But it's cool and will come in handy when I'm back in Australia. So I don't have to switch card's at the airport. Big thanks for that.

And so far there are no issues with this beta. No dropped connections or other bugs.

Will test NFC later today.



Sent from my HTC One_M8 dual sim using XDA Free mobile app