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Thank you for choosing JETech. Please refer to chart below for the warranty timelines of JETech products, as warranty periods differ according to models.
| Item | Warranty Period (Months) |
| Screen Protectors | 12 or lifetime |
| Cables & Adapters | 12 or lifetime |
| Cases | 12 or lifetime |
| Other Accessories | 12 |
Download the AKT_S4_2023-01-14_update.zip file. Do not unzip it unless the specific instructions for your device require it; most systems look for the zip file directly.
While change logs for these specific builds can vary by manufacturer, the January 14th release typically focuses on: AKT_S4_2023-01-14_update.zip
New Update Alert: Optimizing Your System with AKT_S4 (2023-01-14)
Updated security patches to protect your local data. How to Install the Update Download the AKT_S4_2023-01-14_update
Always export your settings or save your APKs before a flash.
Plug the drive into your device’s primary USB port. Navigate to Settings > System > Wireless Update (or Local Update) and select the file. How to Install the Update Always export your
Minor optimizations to the launcher to reduce lag when switching between navigation and media apps.
After the update is complete, we recommend clearing the . This ensures that old temporary files from the previous version don't interfere with the new firmware's performance.