Please upgarde your 8856/8866 karaoke player system firmware and Lemon KTV apk to latest version to solve the issue of iPhone app cann't update songlist.

Prepare a new SD card
Do step by step:

STEP 1: Upgrade system:
1) download http://lemonktv.gotoip55...ot/lemonktv_uboot_mx.rar
or http://www.digitblue.com...ot/lemonktv_uboot_mx.zip

2) release lemonktv_uboot_mx.rar , you will get 3 files:

factory_update_param.aml
g18ref-ota-xxxxxx.zip <-- don't unzip this file again)
recovery.img

3) Copy these 3 files into a SD card. (don't make any sub-folder)
4) Plug SD card in rear of KTV player.
5) If can display launcher interface ,Please select [Android] on launcher interface,[Android]--> [Upgarde]-->[from Local]
The KTV player will re-boot, Step skip to 9).
6) if your KTV player can't go display any launcher interface,
Please turn power off the KTV player, Take off the top cover of player, then press and hold the "reset" button on main board .
(like attached picture showing: http://www.digitblue.com...oot/SG2609main-board.jpg).
7) don't release the "reset" button,in the time ,turn the power-switch on.
8) release the "reset" button when the @9 symbol appears .
9) waitting for a moment(not display), then the player will begin upgarde whole system.( Warning:Do not turn off power when updatting!)

10) Upgarde finished,restart automatically, "NEXT" again and again until launcher interface display

Edited by user Tuesday, January 26, 2016 12:27:29 PM(UTC)  | Reason: Not specified

You're welcome. Just sent you a PM. Let me know if you have any questions.

Sent

See the instructions on my first post.

Try it again, follow the instructions. What error did you encounter?