When charging your S1, a charging animation will appear on the battery icon. A flashing, fully charged icon indicates the S1 is completely charged.

A fully charged S1 provides at least 40 hours of usage. For optimal charging, use the original charging cable with a power source not exceeding 20W.

If your S1 isn’t fully charging or has a short battery life, try the following:
1. Use a different power supply and charging cable, then recharge the device.
2. Ensure your S1 firmware is updated to the latest version. Watch the firmware update tutorial here: ProTemp S1 Firmware Update

If the problem cannot be solved, please take a video of the charging progress and send it to info@chefstemp.com, and we will confirm and solve it for you.

You can reset your S1 by using a needle to press the Reset button next to the charging port. The reset will be complete when the screen briefly lights up. You can watch this video: ProTemp S1 Reset.

We suggest that you use the charging cable in the packaging for charging. Other charging cables may not be compatible, and please note that your charging head power should not exceed 20W. And please use a 5V/2A DC adapter for charging, and do not use an AC adapter. Otherwise, it may cause damage.

If the problem cannot be solved, please shoot a video of the issue and send it to info@chefstemp.com for confirmation.

To ensure safe and effective charging for your S1, please kindly note the following:

• Keep ports dry: Before charging, make sure both the S1’s charging port and the charging cable are completely dry and free from moisture or oil.
• Avoid heat exposure: Do not charge the S1 on surfaces that have not fully cooled down, such as recently used stoves. Prolonged exposure to residual heat may compromise device safety.
• Charge before use: Ensure the S1 is fully charged prior to operation. Do not charge the device while it is actively being used on a grill.
• Use the original power sources: Always use the original charging block. Additionally, you can use a 5V⎓2A DC adapter and a Type-C charging cable.

Following these guidelines will help maintain the performance and longevity of your S1: How to Safely Charge Your ProTemp S1?

Please follow the steps below to ensure a successful upgrade: How to Update Firmware on ProTemp S1 | Step-by-Step Guide

1. Make sure your S1 device is properly connected to the mobile app.
2. You can click on “…” in the upper right corner of the main page, click on “My Connections”, then click on your S1 device, and then click on “Firmware Update” to check the firmware version. When a new firmware version is available, you can update the firmware here.
3. Once the update is complete, the S1 will automatically restart. Return to the firmware page to confirm the update was successful.

If the update does not appear to have completed, please log out of your app account entirely and log back in to refresh the connection. Then try the update process again.

If your S1 does not display temperature data or display LLL, we recommend that you confirm whether the S1 Main Unit is correctly installed on the Base Unit and ensure that all contact points between the Main Unit and the Base Unit are in normal contact. You can watch our tutorial video to install it: ProTemp S1 Installation.

You can also reset S1 by pressing the RESET button next to the charging port to see if it can fix the issue. If it still fails, please take a video of the installation progress and send it to info@chefstemp.com, and we will check and provide you with a solution.

To ensure optimal performance, please kindly check the following:

1. When inserting the probe, make sure the tip goes past the safety line, but avoid placing the meat too close to the tail end.
2. The tail end of the probe should not come into contact with the grill or any other surfaces.
3. We recommend disconnecting all connections in the app and then reconnecting the probe to check.

If the problem continues, please send us relevant screenshots, photos, or videos showing the issue. This will help us analyze the situation more accurately and provide a solution as quickly as possible.

Please remove the fully-charged probe from the Charger or Plus Stand, and insert it into the slot again to activate it.

Please note that the 4‑in‑1 Probe Charger is designed solely for charging multiple wireless probes at the same time—up to four. The wireless probes cannot connect directly to the app; they must be paired with our smart thermometers, such as the ProTemp S1 or the ProTemp Plus Series. You can watch the probe tutorial here: How to Add a Wireless Probe to ProTemp S1 & Charge It with the 4-in-1 Charger. If your probe cannot be added via the app, please check the following steps:

• Ensure your thermometer is turned on, and place it close to the probe so it can receive and transmit the signal properly.
• Before adding a probe, also ensure your thermometer is connected to Wi‑Fi through the app. The Wi‑Fi icon on the display should be solid (not flashing).
• Confirm that your probe is fully charged. When connecting, remove it from the ProTemp Plus Stand or 4‑in‑1 Charger, as Bluetooth cannot be detected while the probe is charging in the slot.
• Please note that each probe can only be connected to one thermometer at a time (either ProTemp S1 or ProTemp 2 Plus).

If you are unsure about the probe’s pairing status, please delete all connections in the app, exit and restart your app, reconnect your thermometer, and then re‑add the probe.

1. Reset: You can reset your S1 by using a needle to press the Reset button next to the charging port. The reset will be complete when the screen briefly lights up. You can watch this video: S1 Reset.
2. Check Charging Operations: We suggest using the original charging block and cable and ensuring the S1 is fully charged before each use. Do not charge the device while it is operating on a grill, as cooking temperatures exceed the safe charging range. Charging under these conditions may cause power or charging issues. How to Safely Charge Your ProTemp S1?

If the problem cannot be solved, please shoot a video of the power issue and send it to info@chefstemp.com for further assistance.