[Android One (Second-Generation) General] dabotsonline:
[MENTION=4936496]joeyhuab[/MENTION] , I saw from your screenshots at https://imgur.com/a/WUU4p that the Android 6.0 Marshmallow MRA58M OTA has installed to your Cherry Mobile G1 H220. Could you please check the following as a favour to see whether they have been enabled with the new radio firmware:

VoWiFi / 'Wi-Fi Calling':

1. Go to Settings > search button > type 'calling' > select the second listing of 'Wi-Fi Calling' > set to 'On' > press Back > search button > type 'calling' > select the second listing of 'Wi-Fi Calling' >

Is it still set to On, or has it turned itself Off?

[from what I understand, the official https://support.google.com/nexus/answer/2811843 method of verification relies on the network, not just phone, being compatible]

VoLTE / 'HD Voice':

2. 1. Go to Settings > search button > type 'Enhanced 4G LTE Mode' >

Does it return the relevant screen when selected?

This screenshot show the back of the retail box of the Cherry Mobile G1 H220, confirming that its only LTE bands are 1800MHz and 2100MHz:

http://3.bp.blogspot.com/-SX3_XsWrE...Akow/xNcCfKF_6do/s1600/Cherry+Mobile+G1+c.png

(via http://pinoyverge.com/topic/2027/ch...xclusive-interview-with-mr-lonson-alejandrino )

https://www.youtube.com/watch?v=w5erPWPW0eQ#t=1m03s

The i-mobile iQ II 8150 has the same 1800MHz and 2100MHz LTE bands as the Cherry Mobile G1 H220, but only has 1GB RAM:

http://3.bp.blogspot.com/-qDfY6KUPf..._Rw/zOB8OAq2kJc/s1600/IMG_19700101_070601.jpg

(via http://www.gadzbox.com/2015/08/unbox-i-mobile-iq-ii-android-one-thailand.html )

http://www.ebay.co.uk/itm/181840373630

(via http://www.ebay.co.uk/usr/i-mobilethailand )

Neither Cherry Mobile nor Google's Android One site has a full list of Technical Specifications, unfortunately - I wish more manufacturers would follow Sony Mobile's lead and offer downloadable White Papers.

Here is official confirmation that the Qualcomm Seed reference device is the Longcheer L8150:

https://android.googlesource.com/kernel/msm.git/+/android-5.1.1_r0.11/build.config

https://android.googlesource.com/kernel/msm/+/android-5.1.1_r0.12/build.config

https://android.googlesource.com/kernel/msm/+/android-5.1.1_r0.15/build.config

http://www.longcheer.net/info_120.aspx?itemid=401

which shenbing < shenbing [at] longcheer [dot] net >, hexiaoqiang < hexiaoqiang [at] longcheer [dot] net> and Christian Bejram < cbejram [at] google [dot] com > have confirmed uses the OTM1287 and ILI9881C components alongside the LCD module:

https://android.googlesource.com/kernel/msm/+/07739884467880fe6d42c76fee876aa6b546b6a6

https://android.googlesource.com/kernel/msm/+/07739884467880fe6d42c76fee876aa6b546b6a6^!/

(There's also a Longcheer L8152 but I'm not sure how that differs.)

The charger unfortunately only seems to be 10W (5V @ 1A):

- CM-1000 (for Cherry Mobile G1 H220)

- PT120 (for General Mobile 4G / 4G Dual GM-113)

- ? (for i-mobile iQ II 8150)

- ? (for Wileyfox Swift)

For a replaceable battery, in theory we can use one of the following 3.8V 2500mAh (9.5Wh) batteries for any Qualcomm Seed device:

- CM-11D (for Cherry Mobile G1 H220)

- AJZH53Y1529 (for General Mobile 4G / 4G Dual GM-113: http://www.btnet.com.tr/wp-content/uploads/2015/05/53.jpg )

- BL-267 (for i-mobile iQ II 8150: http://2.bp.blogspot.com/-eQlpZocE6...ndlY/s1600/Screenshot+2015-08-05+11.56.32.png )

- SWB0115 (for Wileyfox Swift: https://www.youtube.com/watch?v=FfpkIY_vWvg#t=3m54s )

PR Contact: Li Qiang

Email: PR [at] longcheer [dot] net

http://www.longcheer.net/lxfs/index_111.aspx

Sadly, I can't find the official factory images at http://support.moulnisky.com so I would have to use [MENTION=2118602]Sadronis[/MENTION] 's homemade dump STOCK_LUZ59K.rar ( http://meteberkergun.me/gm4gdev/STOCK_LUZ59K.rar ) - as posted to http://xdaforums.com/crossdevice-de...rom-stock-rom-mobile-4g-build-luz59k-t3182135 - to turn the Wileyfox Swift dual-SIM phone into the General Mobile 4G.

However, this might be problematic. [MENTION=2118602]Sadronis[/MENTION] , I've read through a Google Translate of this thread - http://forum.turkdevs.com/konu-stock-rom-gm-a1-4g-build-luz59k.html - and it seems as though nobody has yet attempted to flash your dump onto a General Mobile 4G Dual. Is that correct? Thanks for all your hard work!