Bluetooth Smart (BLE/LE) on Kitkat ROM ? - Android Q&A, Help & Troubleshooting

Hello !
I have an "old" HTC Incredible S but with an Android 4.4.2 ROM .
Today I have bought Heart Rate Sensor for running but that use Bluetooth Smart technology. My phone can't find BLE (bluetooth low energy) sensor
So, I have some questions :
- Why my phone doesn't support BLE even if I run on Android 4.4.2 ?
- Is there solution to implement BLE libraries in ROM?
- Is there another solution ?
Thank you !

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Hello!
I use my Android phone as a OBD scanner (with a bluetooth elm327 interface).
I started using it with Android 1.8 on my HTC HD2.
I had no problem up to Samsung S3 with Android 4.1.2.
After I upgrade to Android 4.2 (with the same S3, or with Huawei G700) and 4.4 (on LG G3 and OnePlusOne),
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aparty said:
Hello!
I use my Android phone as a OBD scanner (with a bluetooth elm327 interface).
I started using it with Android 1.8 on my HTC HD2.
I had no problem up to Samsung S3 with Android 4.1.2.
After I upgrade to Android 4.2 (with the same S3, or with Huawei G700) and 4.4 (on LG G3 and OnePlusOne),
I need to pair my bluetooth OBD scanner every time I restart it (my scanner has a power on/off button).
This is very unuseful!!!
Someone can tell me why?
How can I solve?
Thank you in advance!
Click to expand...
Click to collapse
What brand Bluetooth device is this? Does this only occur on your OBD scanner and not your other devices after the update?
RepairLync said:
What brand Bluetooth device is this? Does this only occur on your OBD scanner and not your other devices after the update?
Click to expand...
Click to collapse
Bluetooth scanner is "Vgate" branded.
That occur not only with my device after update (S3 from Android 4.1.2 to 4.2),
but with all device with Android 4.2 and over (Huawei G700, OnePlusOne, LG G3 D855).
No problem with Android 4.1.2 device (HTC HD2 with SD Android 4.1.2 and lower, S3 before update).
Why?
I suppose something changes in Bluetooth driver on Android 4.2 and newer...

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