CSL System Maintenance and Schedule
3G Services will be affected during 02:00-04:00, actual outage time less than 15 mins
| Date | Affected Area |
| 9-Apr | HK island south, Kowloon east, middle and west, SaiKung, Lantau island |
3G, 4G and 5G Services will be affected during 02:00-04:00, actual outage time less than 15 mins
| Date | Affected Area |
| 14-Apr | ShamSuiPo, MongKok |
| 23-Apr | ShamSuiPo, Taipo, KaiTak, indoor Oceanpark, SpaceMuseum |