# HM-10 write failed **URL:** https://community.thunkable.com/t/hm-10-write-failed/643697 **Category:** Questions about Thunkable X **Tags:** bluetooth **Created:** [June 29, 2020, 10:20am UTC](https://community.thunkable.com/t/hm-10-write-failed/643697 "2020-06-29T10:20:25Z") **Posts on this page:** 11 **Page:** 1
### Author: ![huang7017t](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/huang7017t/32/71425_2.png) [@huang7017t](https://community.thunkable.com/u/huang7017t) #### Post date: [June 29, 2020, 10:20am UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/1 "2020-06-29T10:20:25Z")
I already have a way to connect to HM-10 but there will be 0000ffe1 write failed for device uuid and service 0000ffe0 ![84111741_1703757176444526_4809089249250434872_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/e/5e8b94aea295ea8843358846105f947bb8a21602.jpeg) ![106280888_320039518992964_7213467937854561051_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/0/c075f0faaf3919a5dd0a01d962d118d7d714197f.jpeg) ![擷取2](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/f/7/f7c8ef04513b3a3ab6a6651ed168ae29cdc684f4.png) ![擷1](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/9/3/933f88264d132207ec9d39517f25785d56a1b964.png) ---
### 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: [June 29, 2020, 4:30pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/2 "2020-06-29T16:30:10Z")
Hey @huang7017t can you try using your own string in the blocks here, rather than the string coming from the `Text_Input` , just to see whether or not that makes a difference? Thanks! ---
### Author: ![huang7017t](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/huang7017t/32/71425_2.png) [@huang7017t](https://community.thunkable.com/u/huang7017t) #### Post date: [June 29, 2020, 5:16pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/3 "2020-06-29T17:16:58Z")
The same error occurs in the use string ---
### 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: [June 29, 2020, 7:28pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/4 "2020-06-29T19:28:33Z")
Can you write to it from another device? Or from your Serial prompt? ---
### Author: ![huang7017t](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/huang7017t/32/71425_2.png) [@huang7017t](https://community.thunkable.com/u/huang7017t) #### Post date: [June 30, 2020, 6:56am UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/5 "2020-06-30T06:56:35Z")
Can you write to it from another device? :unable Or from your Serial prompt? :BLE Scanner can prove that the HM10 is operating normally, and can output and read Sorry, my English is not that good I’m afraid that some behaviors that would be impolite through GOOGLE translation ---
### Author: ![neuheisser](https://avatars.discourse-cdn.com/v4/letter/n/9fc29f/32.png) [@neuheisser](https://community.thunkable.com/u/neuheisser) #### Post date: [July 6, 2020, 1:26pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/6 "2020-07-06T13:26:26Z")
It still doesn’t work, I’m afraid. Do you have BLE transmit function anywhere in the timeline to be fixed? Has anybody ever confirmed that it works? ---
### 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, 2:02pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/7 "2020-08-22T14:02:39Z")
The same problem with IOS. No solution still. ---
### Author: ![jungle4ever61fzas](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jungle4ever61fzas/32/71266_2.png) [@jungle4ever61fzas](https://community.thunkable.com/u/jungle4ever61fzas) #### Post date: [October 3, 2020, 10:22pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/8 "2020-10-03T22:22:22Z")
The same problem ---
### Author: ![mbnarciap9xb](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mbnarciap9xb](https://community.thunkable.com/u/mbnarciap9xb) #### Post date: [March 19, 2021, 6:31pm UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/9 "2021-03-19T18:31:21Z")
SAME PROBLEM!!! no solution yet… ---
### Author: ![alexpuhtinq](https://avatars.discourse-cdn.com/v4/letter/a/bc79bd/32.png) [@alexpuhtinq](https://community.thunkable.com/u/alexpuhtinq) #### Post date: [July 28, 2022, 9:17am UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/10 "2022-07-28T09:17:54Z")
Also faced this problem. The solution was to flash the module to the version “HMSoft-10-2541-V549-LongName” ---
### 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, 11:25am UTC](https://community.thunkable.com/t/hm-10-write-failed/643697/11 "2024-11-08T11:25:03Z")