# Why BLE (Bluetooth Low Energy) Thunkable X Cannot Scan Devices

**URL:** <https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681>\
**Category:** Questions about Thunkable X\
**Tags:** bugs, bluetooth\
**Created:** [September 3, 2020, 8:14am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681 "2020-09-03T08:14:37Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [September 3, 2020, 8:14am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/1 "2020-09-03T08:14:37Z")

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**Please Help Me Thunkable X Expert**  
Why BLE (Bluetooth Low Energy) Thunkable X Cannot Scan Devices?

## **I’ve tried this method but it still doesn’t work :**

- Add Location Sensor
- follow the tutorial  
[https://www.youtube.com/watch?v=sNpCTsVifo4](https://www.youtube.com/watch?v=sNpCTsVifo4)

## And this is the information about my device :

- Brand = asus
- Model = ASUS\_Z012DB
- Android Version = 8.0.0
- API = 26
- Codename = Oreo
- Release = 8.0

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**Author:** ![cdvierone](https://avatars.discourse-cdn.com/v4/letter/c/b77776/32.png) [@cdvierone](https://community.thunkable.com/u/cdvierone)\
**Post date:** [October 5, 2020, 1:39pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/2 "2020-10-05T13:39:17Z")

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Hello  
i have the same problem since, the app downloaded in july works perfectly, the same app downloaded now does not work in android, it does not scan, it works fine in IOS and in android live but it does not work when I install the “APK” file please " THUNKABLE STAFF "help us

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**Author:** ![mbonit](https://avatars.discourse-cdn.com/v4/letter/m/9e8a1a/32.png) [@mbonit](https://community.thunkable.com/u/mbonit)\
**Post date:** [October 5, 2020, 4:30pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/3 "2020-10-05T16:30:52Z")

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Hi! I have the same exactly problem! On my IOS Ipad my app works perfectly, on my android phone the BLE Scan doesn’t work. I don’t know what to do! Someone can help me?

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**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [October 6, 2020, 12:01pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/4 "2020-10-06T12:01:31Z")

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## Please Fix BLE Problem, Thunkable X Staff. 🙏 😣

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**Author:** ![vjcambridge01o](https://avatars.discourse-cdn.com/v4/letter/v/59ef9b/32.png) [@vjcambridge01o](https://community.thunkable.com/u/vjcambridge01o)\
**Post date:** [December 29, 2020, 9:43pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/5 "2020-12-29T21:43:35Z")

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Same problem. Is thunkable dead? No replies. Wow all this time wasted??? ☹

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**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [December 30, 2020, 7:51am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/6 "2020-12-30T07:51:25Z")

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> [@vjcambridge01o](#):
>
> Wow all this time wasted??? ☹

😕

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**Author:** ![sirfrancisdrake](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sirfrancisdrake/32/70212_2.png) [@sirfrancisdrake](https://community.thunkable.com/u/sirfrancisdrake)\
**Post date:** [January 3, 2021, 10:11am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/7 "2021-01-03T10:11:16Z")

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I have the same problem! BLE is not working on my Android (8.0.0) but works fine on iOs. The app seems to be slowed down … even pressing button takes 3 or 4 minutes for a reply. So i think that BLE is working but something somewhere is going wrong. But, if i build up a very simple app with ble and a scan function… it works like a sharm. So i think it something about the “more complicated” app…

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**Author:** ![sirfrancisdrake](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sirfrancisdrake/32/70212_2.png) [@sirfrancisdrake](https://community.thunkable.com/u/sirfrancisdrake)\
**Post date:** [January 3, 2021, 10:53am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/8 "2021-01-03T10:53:34Z")

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this morning i got the trick!! my block was:  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/5/052d0efe1573499bd8a1e446723315f376557946.png)

if i put the “statuslabel” showing the “error” the scan works fine. if i remove it the scan never ends!

So i save the “error” into a variable and then do other stuff … and this solved all my problems  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/3/5382c29f92961843e186bba9db50c601fa9aa7f6.png)

Hope it will help someone else!!

[SOLVED]

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<div class="post-metadata">

**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [January 3, 2021, 2:41pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/9 "2021-01-03T14:41:44Z")

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your trick didn’t help me, I’ve tried your trick but it doesn’t make any difference.

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**Author:** ![sirfrancisdrake](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sirfrancisdrake/32/70212_2.png) [@sirfrancisdrake](https://community.thunkable.com/u/sirfrancisdrake)\
**Post date:** [January 3, 2021, 2:52pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/10 "2021-01-03T14:52:50Z")

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pity … it solves the scan issue for me…

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<div class="post-metadata">

**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [January 3, 2021, 3:13pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/11 "2021-01-03T15:13:51Z")

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😖 🥺 😭

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<div class="post-metadata">

**Author:** ![sirfrancisdrake](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sirfrancisdrake/32/70212_2.png) [@sirfrancisdrake](https://community.thunkable.com/u/sirfrancisdrake)\
**Post date:** [January 13, 2021, 6:45pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/12 "2021-01-13T18:45:12Z")

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i had again some time for checking the ble scan issue.

1. i was using my app from live test and adding the label with the green error variable from ble scan solved the neverending scan
2. then i downloaded the app just to check how could be using it without screen riduction
3. with my surprise i found that the scan wasnt working again…

i solved again giving to both thunkable and my app the autorization to use the localization…

maybe this will helps!

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**Author:** ![unknownthunker](https://avatars.discourse-cdn.com/v4/letter/u/c57346/32.png) [@unknownthunker](https://community.thunkable.com/u/unknownthunker)\
**Post date:** [January 14, 2021, 4:48am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/13 "2021-01-14T04:48:53Z")

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No It doesn’t helps BLE is not fully published to thunkable they will take time to publish it

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**Author:** ![unknownthunker](https://avatars.discourse-cdn.com/v4/letter/u/c57346/32.png) [@unknownthunker](https://community.thunkable.com/u/unknownthunker)\
**Post date:** [January 14, 2021, 4:51am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/14 "2021-01-14T04:51:34Z")

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I have Nokia 6.1 Plus Android 10.00 but it doesn’t works on it also as i said before- BLE is not fully published to thunkable they will take time to publish it

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<div class="post-metadata">

**Author:** ![Salman](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Salman](https://community.thunkable.com/u/Salman)\
**Post date:** [January 24, 2021, 5:15am UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/15 "2021-01-24T05:15:08Z")

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> [@unknownthunker](#):
>
> - BLE is not fully published to thunkable they will take time to publish it

do you have any documentation about that?

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**Author:** ![cdvierone](https://avatars.discourse-cdn.com/v4/letter/c/b77776/32.png) [@cdvierone](https://community.thunkable.com/u/cdvierone)\
**Post date:** [January 24, 2021, 10:08pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/16 "2021-01-24T22:08:47Z")

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Hi  
I have a big problem too, I cannot publish an app just because BLE works badly, it is important today BLE, I hope they will solved it soon

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**Author:** ![danielobataqa3nw0](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@danielobataqa3nw0](https://community.thunkable.com/u/danielobataqa3nw0)\
**Post date:** [February 7, 2021, 2:23pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/17 "2021-02-07T14:23:06Z")

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Look for this code line and add: |PROPERTY\_READ  
BLECharacteristic::PROPERTY\_NOTIFY **|BLECharacteristic::PROPERTY\_READ**

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**Author:** ![cdvierone](https://avatars.discourse-cdn.com/v4/letter/c/b77776/32.png) [@cdvierone](https://community.thunkable.com/u/cdvierone)\
**Post date:** [February 19, 2021, 3:55pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/18 "2021-02-19T15:55:13Z")

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sorry i’m new to thunkable, where do i find the line of code? here we only have blocks.  
thank you

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**Author:** ![danielobataqa3nw0](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@danielobataqa3nw0](https://community.thunkable.com/u/danielobataqa3nw0)\
**Post date:** [February 20, 2021, 2:20pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/19 "2021-02-20T14:20:43Z")

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look for in your Arduino sketch, if you program your hardware with ESP32 example or similar. Thunkable X needs a PROPERTY\_READ BLECharacteristc.

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**Author:** ![cdvierone](https://avatars.discourse-cdn.com/v4/letter/c/b77776/32.png) [@cdvierone](https://community.thunkable.com/u/cdvierone)\
**Post date:** [February 20, 2021, 5:14pm UTC](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681/20 "2021-02-20T17:14:01Z")

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Thank you danielobataqa3nw0  
I will hear the software engineer, I did not do the ESP 32 code, but I do not think this is the problem, with Android versions prior to version 7, it works perfectly  
best regards

[Next page](https://community.thunkable.com/t/why-ble-bluetooth-low-energy-thunkable-x-cannot-scan-devices/789681.md?page=2)
