Features:
The CECT T689 provides dual SIM capability, with no need to ever switch between the two SIM cards. Two individual ‘call’ buttons allow you to choose which number to dial from. Received calls, dialled number and SMSes are marked with ‘SIM B’ if used with the second SIM card.
The T689 has all common phone features, including 1.3MP camera, MP3 player, video player and audio player.

Missing features:

• English dictionary. No intelligent word entry, all letters must be entered individually. There is this feature for Pinyin though but not English.
• Unable to reply to an SMS from a different SIM card easily, must create a new SMS from start.
• No keypad lock timeout less than 5 seconds (excluding 0)
• Unable to change the SMS tones, must chose from phone’s built in unpleasing tones

Design flaws:

• Keypad unlock requires the double press of the “#” key. Any keypad lock that relies on double pressing a key to unlock can be unlocked very easily accidently. This is a constant problem with this phone.
• The CECT T689 has a problem stating ‘Warning! Bad Contact -Charger!’, this is a serious problem disabling the data and charging capability through the supplied USB cable. The phone is unusable when this message is displayed. To remove the message I squeeze the phone and screen till message goes away. Fortunately, a spare battery is supplied with the phone and can be swapped to allow the other to recharge.

CECT T689 displays USB/charger connected randomly, even when no cables are connected

CECT T689 Bad Contact Charger message

I am still using the T689 for both my personal and work numbers and will continue do so as long as the basic dual SIM functionality remains.

The flex cable can be purchased from eBay for $7 US (including shipping), and the housing can be purchased for around $16 (including shipping). The flex cable is attached to the keypad circuit, which is automatically included in the purchase. When purchasing the housing, you need to make sure it is NOT a slip on case, skin, pouch, fascia, protector, etc, etc. The housing should include as a minimum the front, middle, back and battery cover. Keypad, hinge, pads, grommets, buttons may even be included, as well as TORX screwdrivers, make sure you buy all what you need. The included contents of my purchased housing were as follows.

To perform repairs on the phone, you require TORX T5 and T4 drivers, a small flat driver will come in handy as well, also at least 2 hours of spare time.

First a look at my broken phone, besides the obvious fact that it is broken into two separate halves, the hinge is broken and there is normal housing wear.

First remove the battery cover, battery and SIM card. Remove 2 TORX T5 screws under the battery cover circled in red. Separate the plastic case via two plastic clips as squared in red.

The antenna assembly can be removed by disconnection of the keyboard connector, squared in red. Remove the 4 TORX T4 screws, circled in red. These screws will be required for the new housing.

Now, if you need to preserve the keypad circuit; it is a little bit more involved. First, lift up the tabs of the metal keypad as circled in red and then pry of the metal keypad. Most likely the keypad circuit will be stuck to the plastic so extreme care is required when removing. It may be easier to reuse this whole part, as it seems all colour housing still have this same silver part.

Following is a photo of the new keypad circuit and the plastic keyboard housing.

Remove the backing of the keypad circuit and stick the circuit to the plastic housing. You will need to start from the bottom to allow the connectors to be threaded through the holes.

A photo of the completed keypad assembly.

Remove the antenna from the antenna assembly by first removing two black grommets and then unclipping the two plastic clips.

Once the circuit board is removed, remove all the following from the plastic housing as these are required in the new housing.

Insert all the old removed parts into the new housing as follows.

The change the screen housing, first remove the 4 rubber grommets as circled in red, and then the 4 TORX T5 screws behind.

Once the plastic screen housing is removed, the display circuit is visible. Carefully pry away the circuit from the plastic near all buttons and the backup battery as circled in red. The camera can be removed by lifting the brown tab as squared in red. Move the circuitry to the new housing and then connect the camera.

To connect the two clamshell halves, the hinge can be retracted in, the hinge is circled in red. This allows the two halves to combine; the hinge should then pop into place securing the two halves.

Finally, replace all the finishing touches such as labels, hinge caps and grommets. Photos of the new phone are below.

The following repair guide may be of further help
Motorola V3-Razr Repair Manual KS-042050-V1.2.pdf

Here is how to set the CECT T689 to English language:

1. Click on the circular button which will get you to the main phone menu, you will see some Windows style icons
2. Click the down arrow till you get to the last menu (as seen in the following picture). This is the ‘System’ menu, click the first icon which looks like a calculator, this is the ‘Settings’ menu.
   
3. Once in the settings menu, click on the second option, this is ‘Phone Setup’
4. In the phone setup menu click on the third menu option, this is ‘Language’
5. You will now be in the language menu and can see the ‘English’ option, in English.