Windows 10 Mobile Build 10512 - Bug Fixes

Build 10512 of the Windows 10 Mobile Insider Preview is now available for Windows Insiders on the Fast ring.
This build don't include any new features rather it fixes thousands of bugs.This time its much more stable than 10166 as of my initial use on LUMIA 730.
Gabe Aul says "I expect the builds to be out more frequently again as we go forward from here. Our major focus on Windows 10 Mobile right now is on improvements to core quality."
Thus we can expect more new builds....
Lumia 730/735 actually runs the preview pretty well.

#Fixed these issues:

-General improvement in overall stability and performance.
-You can now set the Lock screen and background image from within the Photos app.
-We fixed an issue where apps installed on SD cards weren’t working after a reboot.
-We have improved Latvian and Chinese inputs.
-We have made improvements to the Kid’s Corner tile layout.
-We have improved reliability of Data Sense notifications.
-Modified Shape Writing algorithm to be less aggressive in suggesting contact names over common words.
-Resolved an issue where Camera would not launch when the phone was locked.
-We fixed an issue where notifications for incoming text messages weren’t appearing.
-We fixed an issue where the touch screen wouldn’t be responsive after ending a phone call on some devices.
-And we fixed an issue where folder tiles have obviously overlapping text.

#We do have a few known issues for you to take note of for this build:

-Mobile hotspot doesn’t work in this build. When sharing the Internet from your phone using Mobile Hotspot, devices will fail to get a valid IP address from your phone and will show no internet access.
-Two-factor authentication for your MSA with a phone number doesn’t work in this build. If you reset your phone and go through the first run experience, you won’t be able to input more than 2 characters for validating phone or text authentication. If you have a secondary email for two-factor authentication – you can choose that. As a workaround, add secondary email for two-factor authentication.
-Some phones might spend a long time in the post update migration experience – just let the phone sit and it should complete this migration.
-Apps that use background audio such as Groove, Podcast, Pandora, etc. will crash when launching after receiving an app update from the Store. Rebooting the device will resolve this issue.
Some phones with a large number of tiles pinned to the Start screen may get stuck in a state where the device shows “Loading…”; the device will need to be reset or rolled back to Windows Phone 8.1 using Windows Phone Recovery Tool.
Some apps may fail to update through the Store with the error code 0x80073cf9; uninstalling the application and reinstalling it will resolve this issue.
-The Movies & TV app will not work in this build (video playback is currently broken).(But in lumia 730 it works fine)


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NETWORK Technology
GSM / HSPA
LAUNCH Announced 2014, September
Status Available. Released 2014, September
BODY Dimensions 134.7 x 68.5 x 8.7 mm, 80.3 cc (5.30 x 2.70 x 0.34 in)
Weight 130 g (4.59 oz)
SIM Dual SIM (Micro-SIM, dual stand-by)
DISPLAY Type OLED capacitive touchscreen, 16M colors
Size 4.7 inches (~64.3% screen-to-body ratio)
Resolution 720 x 1280 pixels (~316 ppi pixel density)
Multitouch Yes
Protection Corning Gorilla Glass 3
- ClearBlack display
PLATFORM OS Microsoft Windows Phone 8.1
Chipset Qualcomm Snapdragon 400
CPU Quad-core 1.2 GHz Cortex-A7
GPU Adreno 305
MEMORY Card slot microSD, up to 128 GB
Internal 8 GB, 1 GB RAM
CAMERA Primary 6.7 MP (6.1 MP effective), 2848 x 2144 pixels, Carl Zeiss optics, autofocus, LED flash
Features 1/3.4'' sensor size, geo-tagging, face detection, panorama
Video 1080p@30fps, stereo sound rec.
Secondary 5 MP, 1080p
SOUND Alert types Vibration; MP3, WAV ringtones
Loudspeaker Yes
3.5mm jack Yes
COMMS WLAN Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth v4.0, A2DP, LE/ apt-X after WP8 Denim update
GPS Yes, with A-GPS, GLONASS, Beidou
NFC Yes
Radio FM radio
USB microUSB v2.0
FEATURES Sensors Accelerometer, gyro, proximity, compass
Messaging SMS (threaded view), MMS, Email, Push Email, IM
Browser HTML5
Java No
- Active noise cancellation with dedicated mic
- MP3/WAV/eAAC+/WMA player
- MP4/H.264/H.263/WMV player
- OneDrive (15 GB cloud storage)
- Document viewer
- Video/photo editor
BATTERY Li-Ion 2200 mAh battery (BV-T5A)
Stand-by Up to 600 h
Talk time Up to 22 h (2G) / Up to 17 h (3G)
Music play Up to 60 h
MISC Colors Orange, green, white, black
SAR US 1.07 W/kg (head) 1.34 W/kg (body)
SAR EU 0.50 W/kg (head) 0.96 W/kg (body)
Price group 7/10