Detailed Answer
Warranty calculation: 1. From the purchase date (invoice date); 2. Lider: 1-year full warranty + 2-year trade-in (non-human-caused faults); 3. Xingjia: 1-2 year warranty depending on model; 4. Consumables (battery/antenna/key caps/sealing rings): 3-6 months warranty; 5. Extended warranty available (Lider/Xingjia). Warranty requires proof (invoice/purchase record); human-caused damage is not covered.
| Start | Invoice date |
| Lider | 1 year + 2-year trade-in |
| Consumables | 3-6 months |
Note:Losing the invoice affects warranty claims — keep it safe.