FAQ - Fragen und Antworten

Charger or battery defective. Check charger and battery.

The battery has been deeply discharged or is worn out. Use a new battery and avoid deep discharge.

The battery is faulty and cannot maintain the voltage, causing the vehicle to switch off spontaneously or jerkily and drive again after a short time, whereby the fault is repeated continuously. Check the battery and replace it if necessary.

Motor cable incorrectly or not connected. Check and connect the motor cable (see instructions).

Throttle, speed or direction switch defective (if present). Check or replace switch.

Speed switch defective. Check or replace switch.

On/off switch defective. Check or replace switch.

Battery not connected. Connect the battery.

As long as the charging cable is connected to the vehicle, it cannot be switched on. To use the vehicle, disconnect the charging cable from the vehicle.

Charging socket defective (if present). Check or replace charging socket.

Direction switch defective. Check or replace switch.

Overload or electr. Short circuit. Do not overload or let check the device.

It is stowed elsewhere in the box or the vehicle. Either stowed under or in the vehicle or already installed at the factory. It may still be in the polystyrene packaging.

Incorrectly mounted. Check whether all washers and split pins, nuts etc. are correctly mounted (see instructions).

Speaker defective or cable loose. Replace speakers or re-solder cables.

Ridden on too hot surface or in dirt. Change tires and avoid hot surfaces and dirt.

Dirt and moisture damage the switches. Do not drive in moisture or dirt such as meadows, gravel, sand, etc.

Normal. Only in high gear are both engines equally powerful. Shift into high gear.

The cable was torn or crushed during assembly. Check or replace the steering wheel.

Not bound. Do the binding process (see instructions).

It is stowed elsewhere in the box or in the cars body Look under the seat or in the cars body, or in the packaging.

The batteries have no contact. Bend the battery contacts a little.

The batteries have no contact because they have different dimensions. Use non rechargeable batteries or bend the battery contacts a little.

The cable was torn or crushed during assembly. Check or replace the steering wheel.

Incorrectly mounted. Check whether all washers and split pins, nuts etc. are correctly mounted (see instructions).

The batteries have no contact. Bend the battery contacts a little.

Normal, that's the amount of rubber in the tire. After a few days, the smell will disapear.

The distance and height depends on the visibility and the weather. You must adhere to the legal requirements and carry out a range test before every flight. As a rule, distances over 40 meters do not make sense because it is no longer possible to fly in sight.

Not calibrated. Calibrate the device (see instructions).

Rotor blades incorrectly mounted. Mount the rotor blades correctly (see instructions).

Battery or charger defective. Check battery/charger and replace if necessary.

Battery not connected. Connect the battery.

Not bound. check out the binding process (see instructions).

Main gear or pinion damaged or worn by dirt. Check or replace main gear and pinion.

The battery has been deeply discharged or is worn out. Use a new battery and avoid deep discharge.

Normal. Drones without GPS always have to be trimmed and actively held in one position.

The Transmitter defective. Swap transmitter.

Apps are continuously being developed. Familiarize yourself with the functions of the app and if you have any questions, please contact customer service.

The app will only be adjusted a few days after the update. Wait a few days until the app is adapted to the new smartphone update.

The apps are moved from time to time or the link changes. Try the app from the Jamara homepage.

The wings are inserted the wrong way. Mount the wings the right way.

The tail is mounted in the looping position. Mount the tail in the other position.

The flight distance depends on the wind and the lift. Fly when there is more wind and launch the glider from a hill.

A check valve is built into some bouncy items. For animals / balls with a needle pump, it is sufficient to insert the needle into the valve without a pump. For balls with a plug, it is sufficient to remove the plug.

A Button on the transmitter is defective. Swap transmitter.

The batteries have no contact or the rechargeable battery is defect. Bend the battery contacts a little or change the rechargeable battery.

Sound effects are undesirable. Press the sound or horn button for a few seconds (see instructions).

Only 2 of the 4 batteries in the vehicle were replaced. Replace all FOUR batteries. 2 are on the back of the compartment (see instructions).

If the excavator arm is stuck in the uppermost position, you can try to push it down with a little force until it is free again. A cracking noise is normal, it is the safety slip clutch.

Defective motor or gearbox. Check or replace motor or gearbox.

The rechargable batteries have no contact because they have other dimensions. Use non rechargeable batteries or bend the battery contacts a little.

All vehicles have the same frequency e.g. 27MHz. You can only use vehicles of different frequencies.

All vehicles were bound to the same transmitter. Always switch on and bind one device first, then the next (see instructions).

Electronic defect. Device must be replaced.

Normal, after a few minutes the vehicle goes into standby. No reason for complaint.

The Transmitter defective. Swap transmitter.

Main gear or pinion damaged or worn by dirt. Check or replace main gear and pinion.

Reverse gear is deactivated on the controller. Activate reverse gear on the controller (see instructions).

Not bound to transmitter. Watch the binding process (see instructions).

Battery not connected. Connect the battery.

Battery or charger defective. Check battery / charger and replace it if necessary.

The screw has come loose. Before each ride, check whether the screw is screwed in deep enough. Carefully screw in the screw and spring all the way in. When screwing in, be careful not to overtighten the screw as this will damage the thread in the servo. Then loosen the screw again by approx. 1/2-1 turn or until the spring visibly relaxes. The spring must not be too relaxed, otherwise the screw is not screwed in deep enough. If the screw no longer holds, you can try to shorten the spring a little so that you can screw the screw deeper into the thread. You can also fix the screw with screw locking glue.

Pinions gap is set incorrectly or too much contamination. Check or adjust the pinions gap and avoid driving in fine sand etc.

Little out of balance is normal. Continue driving. No reason for complaint.

The battery has been deeply discharged or is worn out. Use a new battery and avoid deep discharge.

The rechargeable batteries have no contact because they have different dimensions. Use batteries or bend the battery contacts a little.

The track width is set too small. Reduce track width (see instructions).

The Screw is not tightened properly. The screws should be checked before every ride.

Differential worn or defective due to overload. Check or replace differential.

Wheel axle is bended or there is water in the tire. Remove water from the wheel or check and replace the wheel axle.

The battery has been deeply discharged or is worn out. Use a new battery and avoid deep discharge.

Lid not closed or fuselage damaged. Close the lid or check the fuselage.

A lot of water will always get in when reversing. Only use reverse for maneuvering.

Some water in the trunk is normal. Pour water out of boat.

The boat has a switch-on safety function (if present). Put the boat in the water.

The batteries have no contact. Bend the battery contacts a little.

Battery or charger defective. Check battery / charger and replace if necessary.

Steering servo is defective. Check or replace steering servo.

Battery not connected. Connect the battery.

The rechargable batteries have no contact because they have other dimensions. Use non rechargeable batteries or bend the battery contacts a little.

Normal. Single-engine speedboats always steer in one direction more than the other due to the engine's angular momentum.

Normal. Single-engine speedboats always have to be trimmed and actively steered in one direction.

A motor is defective or too weak or the transmitter is out of trim. Check trim on transmitter or check / replace motor.

A propeller or a steering servo is defective (if servo is present). Mount propeller or replace steering servo.

Cable brakes on the trolley. Take the cable a little out of the way or oil the guide rail a little.

Trolley motor defective. Check or replace the motor.

Batteries have no contact. Carefully bend the contacts in the battery compartment with a screwdriver.