Polar M400 Watch micro-USB connector Replacement

Escrito Por: Benjamin Freeman

Comentários: 25

Polar M400 Watch micro-USB connector Replacement

Dificuldade

Difficult

Passos

Tempo necessário

30 minutes

Introdução

Your Polar M400 won’t charge anymore? The micro-USB connector has corroded? You don’t want to pay a whopping 20€ (+ shipping) for a new connector from Polar? Not afraid of soldering and heat guns? If so, you have come to the right place!

Ferramentas

Peças

Micro-USB female connector

Passo 1

Insert a standard paper clip into the holes on both sides of the watch that connect the watch's face with the wrist strap.

It may be easier to push the pins out in one direction. Unfortunately, I do not recall which direction was easier…

Nathan Gelderloos - 26/04/18

Passo 2

Apply an upward pressure to the holes until the locking pins release.
Use precision tweezers to remove the pins that connect the face with the strap.

Passo 3

Once the pins are released, the old wrist strap should snap off.
Simply lock the new wrist strap into place.

Passo 4

Use the T5 head on the iFixit screwdriver to unscrew the four screws on the back of the watch’s face.

Passo 5

Gently remove the backing from the watch.

Passo 6

Use tweezers to gently pry the golden sensor away from the battery.
Remove battery using the plastic opening tools.

this shows how to take the battery out; what about replacing it nd securign the ‘electricity leads’ of the new battery to the watch?

Yonatan G - 06/09/20

Thanks, very clear straight forward steps

mohamed elmosalamy - 15/09/20

this shows how to take the battery out; what about replacing it nd securign the ‘electricity leads’ of the new battery to the watch?

même remaque que jonathan

pas assez de précision sur la remise en place des connecteur de la nouvelle batterie

François Collet -

Bonjour François, as tu réussi à remonter la batterie?

Thierry Grandjean -

Very strange you haven't completed the procedure.

John Kirk -

It says 'To reassemble your device, follow these instructions in reverse order' How difficult is that? So, put battery in, carefully fold contacts back, etc, etc....if that is not obvious, then please do not attempt this at all.

Mark van der Giezen -

Passo 7

Detach the screen from the screen protector using a PH000 screwdriver.

Passo 8

Attach a new screen to the screen protector.
Make sure that the charging port remains accessible, as it can easily become detached during the replacement.

hello and thanks for the tutorial. I need to fix the screen of a V800 polar and I have a screen of the m400. Do you think I can replace one with the other? Can you confirm what the same LCD is? Thank you very much for everything

juan_dinio69 - 29/09/18

Привет, под экраном есть два элемента, нужны их характеристики,позже отправлю фото, какие элементы перегорели.А вообще есть электрическая принципиальная схема polar m400?

Game Pro - 29/05/19

Where does even one get a screen in the first place?

Christos Dimitrakakis - 30/05/19

Bonjour,

pouvez-vous me dire ou acheter un port usb pour remplacer sur montre M400 comme expliqué sur le tutoriel?

Merci

Denis

judoclubbastogne - 02/01/20

Passo 9

Follow the screen replacement tutorial to dismantle the watch.
Carefully lift the screen from the board.
Disconnect the USB's flex PCB from the main board. Save the red rubber seal of the USB connector for later.

Passo 10

Use a tool like a helping hand to hold the USB connector part.
Using a heat gun, blow hot air underneath the PCB.
Once the solder is melting give the connector a good tap in order to make the PCB fall loose.

Passo 11

Place the new USB connector on a flat surface with its pins pointing upwards.
Place the PCB on top on the pins, the exposed copper traces on the flex PCB facing the flat surface.
Using an iron, solder the PCB by heating all the pads at the same time (as much as possible) and apply pressure so that the pins of the USB connector come through.

Passo 12

Connect the flex PCB back to the main board.
Reassemble the watch stopping before screwing the lid back.
Add hot glue to the base of the USB connector filling the watch case's cavity. Be careful not to put hot glue inside the connector.
While the glue is still hot, put the red rubber seal back on top.
Screw the lid back.

Warning update : In my case hot glue wasn’t so good at waterproofing… The watch steamed up after long activities, which eventually led to corrosion… Maybe silicon would have been better.

Benjamin Freeman - 30/07/21

Dónde se compra el adaptador?

Edgar Armando Manzanarez -

Otra vez,donde se compra el puerto de carga para reemplazarlo?

Mauricio Siegler -