# I've got a problem with BLE component and the JDY-10-v2.4 module **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [July 7, 2019, 9:31pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097 "2019-07-07T21:31:58Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![devpietro](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@devpietro](https://community.thunkable.com/u/devpietro)\ **Post date:** [July 7, 2019, 9:31pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/1 "2019-07-07T21:31:58Z")
I was trying to make an app that communicate with my HM11 module (JDY-10-v2.4). I successfully connect and sent strings by my android phone, using the UUID characteristic 0000FFE1-0000-1000-8000-00805F9B34FB. If I try to develop the same app for iOS I can connect without problem, but if I try to send strings using the same UUID, it returns this error: “characteristic 0000FFE1-0000-1000-8000-00805F9B34FB write failed for device _my device ID_ and service 0000FFE0-0000-1000-8000-00805F9B34FB”… Help me, please ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [July 8, 2019, 9:38am UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/2 "2019-07-08T09:38:30Z")
Hi @devpietro, Sorry to hear you are having issues with this. As you can probably imagine, it’s tricky to debug this component without access to the physical hardware you are using. Can you send us a screenshot of the blocks you are using as well as a link to the supporting documentation you are using the obtain the characteristic UUIDs? Thanks. ---
**Author:** ![devpietro](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@devpietro](https://community.thunkable.com/u/devpietro)\ **Post date:** [July 8, 2019, 10:20am UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/3 "2019-07-08T10:20:42Z")
Thanks for the quick reply! To get the UUID I used the BLE scanner app ([https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner](https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner)) and here there’s a screenshot of the information I got by android: ![BLE_scanner_Screenshot](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/c/2c9e79b67bdb89502ee5681c6341e108d5702d6c.jpeg) And by iPhone: ![iPhone_Screenshot_BLE1](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/9/8/985bd1506c5e9864dfcd3976891a33361cf53047.jpeg) ![iPhoneScreenshot_BLE2](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/c/eca708dc474f0e35f3fbefc79d4c1eaabae71e52.jpeg) About the blocks I’m using these one: ![Blocks_Screenshot](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/f/ef5db495a18578c4b4fa018e241fc4e9ff0dc638.png) The error which the Transmit function return is: ![iPhone_Screenshot_MyApp](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/2/32a391e8e8e591858cc7ea5f3e643d2c7d3e5f53.jpeg) Thank you again for your time! ---
**Author:** ![tjsmart2013eidfa0](https://avatars.discourse-cdn.com/v4/letter/t/7993a0/32.png) [@tjsmart2013eidfa0](https://community.thunkable.com/u/tjsmart2013eidfa0)\ **Post date:** [July 23, 2019, 5:30am UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/4 "2019-07-23T05:30:22Z")
I am having the exact same issue with the hm10. I hope we can find a solution. ---
**Author:** ![deepalsoyfgo](https://avatars.discourse-cdn.com/v4/letter/d/3da27b/32.png) [@deepalsoyfgo](https://community.thunkable.com/u/deepalsoyfgo)\ **Post date:** [March 14, 2020, 6:13pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/5 "2020-03-14T18:13:22Z")
I have the same problem with a HM-10. Has somebody got a solution? ---
**Author:** ![gbcosta96p8mqb](https://avatars.discourse-cdn.com/v4/letter/g/ecc23a/32.png) [@gbcosta96p8mqb](https://community.thunkable.com/u/gbcosta96p8mqb)\ **Post date:** [May 7, 2020, 5:48pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/6 "2020-05-07T17:48:39Z")
Same problem here! Did anyone find a solution? ---
**Author:** ![stanislavirintod5](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@stanislavirintod5](https://community.thunkable.com/u/stanislavirintod5)\ **Post date:** [August 22, 2020, 1:57pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/7 "2020-08-22T13:57:44Z")
Have exactly the same problem. HELP P PP P! ---
**Author:** ![jeanlucpanneauvtlc](https://avatars.discourse-cdn.com/v4/letter/j/a5b964/32.png) [@jeanlucpanneauvtlc](https://community.thunkable.com/u/jeanlucpanneauvtlc)\ **Post date:** [January 2, 2021, 6:48pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/8 "2021-01-02T18:48:41Z")
I have the same issue. Does anybody have the solution ? ---
**Author:** ![mbnarciap9xb](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mbnarciap9xb](https://community.thunkable.com/u/mbnarciap9xb)\ **Post date:** [March 15, 2021, 7:08pm UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/9 "2021-03-15T19:08:08Z")
Did anyone figure this one out? Same problem here ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [November 8, 2024, 11:29am UTC](https://community.thunkable.com/t/ive-got-a-problem-with-ble-component-and-the-jdy-10-v2-4-module/135097/10 "2024-11-08T11:29:21Z")