There is no direct bus to Dongguan in Gaobei Town, dapu county, Meizhou City, and you need to change trains once on the way. I suggest you transfer at Jieyang, where there is plenty of time and frequency.

Dongguan is a prefecture-level city and megacity under the jurisdiction of Guangdong Province, and a central city on the east coast of the Pearl River Delta approved by the State Council.