Est357sd which was meant for china bt was exported to africa, it displays "toner not recognized" when we put a new 1 frm the local suplier.What can I do to make the machine accept local toners?

You can try either of these solutions as there does not appear to be a specific instruction for the DVD21:

Harman Kardon DVD1 / DVD5 / DVD10 / DVD20 / DVD50 / DVD1500 1. Player has to be in standby mode, no disc in tray
2. Press 3, 1, 4, 1, 5, 9, 2
3. Enter region (1-4)
4. Press OPEN, insert a disc

Note: Region is saved, you will have to set the RC every time you want to watch another DVD.

Harman Kardon DVD22 / DVD23 / DVD31 / DVD47 / HS100 HTS
1. Switch on
2. Press OSD
3. Select "Setup"
4. Enter 3, 1, 4, 1, 5, 9, 0 (the last number is the region)

See below region codes. It appears Harman Kardon only support 1-4, but it is worth trying 0 and seeing if it works.

First, see if you can find out what type of DVD it is PAL or NTSC. The difference (You need to keep this in mind when selecting your region):
NTSC: usually associated with the United States, Canada, Japan, South Korea, Mexico, Philippines, Taiwan, and other countries.
PAL usually associated with Europe, most of Africa, China, India, Australia, New Zealand, Israel, North Korea, and other countries (and Brazil, but using the refresh rate and resolution commonly associated with NTSC).
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0. Informal term meaning "worldwide". Region 0 is not an official setting; discs that bear the region 0 symbol either have no flag set or have regions 1-6 flags set. Region 0 is commonly referred to as "Region Free", especially when talking about DVD and Blu-ray Disc players.

1. United States, Canada, Bermuda, Caribbean, U.S. territories
2. Europe, Middle East, Egypt, Japan, South Africa, Swaziland, Lesotho, Greenland, French Overseas departments and territories
3. Southeast Asia, South Korea, Taiwan, Hong Kong, Macau
4. South America, Central America, Mexico, New Zealand, Australia, Papua New Guinea and much of Oceania
5. Bangladesh, India, Nepal, Afghanistan, Sri Lanka, Ukraine, Belarus, Russia, Kazakhstan, Pakistan, Africa (except Egypt, South Africa, Swaziland, Lesotho), Central Asia, Mongolia, North Korea
6. China
7. Reserved for future use, MPAA-related DVDs and "media copies" of pre-releases in Asia
8. International venues such as aircraft, cruise ships, spacecraft, etc.

ALLRegion ALL discs have all eight flags set, allowing the disc to be played in any location, on any player.
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Good Luck.

I don't know this for sure but you blew the main power fuse. Hopefully that's all you did. I believe you might have melted the main power board take it out if you can and look at it.

Seven regions (also called locales or zones) have been defined, and each one is assigned a number. Players and discs are often identified by their region number superimposed on a world globe. If a disc plays in more than one region it will have more than one number on the globe.
1: U.S., Canada, U.S. Territories
2: Japan, Europe, South Africa, and Middle East (including Egypt)
3: Southeast Asia and East Asia (including Hong Kong)
4: Australia, New Zealand, Pacific Islands, Central America, Mexico, South America, and the Caribbean
5: Eastern Europe (Former Soviet Union), Indian subcontinent, Africa, North Korea, and Mongolia
6: China
7: Reserved
8: Special international venues (airplanes, cruise ships, etc.)
Hope this helps

this is bcuz of country code..........ask for da code........frm some1....so ur phone will statr working

It means that everything is being forward to a BT headset. You need to disable it, go to the BT icon, My devices, choose the BT that is currently connected and tap on Disconnect, or just power off the BT.

Try these steps:
1. Press MENU # 1 9 3 4 in sequence rapidly. The LCD panel should now display TECH.
2. Press MENU, and then press ENTER. The LCD panel will display Tech Mode.
3. Press the left arrow (<) button once. The operator panel will display NEW CARTRIDGE.
4. Press ENTER. The operator panel will display [YES].
5. Press ENTER. The toner warning message should be gone.
6. To exit TECH MODE, press MENU # 1 9 3 4 in rapid succession, as if you were dialing a phone number. The operator panel should no longer display TECH.
Let me know if it doesn't work as there is another possible solution.

Make sure that the spring contacts where the cartridge goes in aren't bent in or dirty. Also, when you put the old cartridge back in,does the printer recognize it? If so, then your new cartridge is defective.

First thing what is your new phone you using now?
If still the same palm operating system,what you need to do is just 1.export your contact from your palm desktop.After that you create a new ac for your palm desktop then import the file you export just now to the palm desktop again.If you are using windows mobile repeat the number 1.then go to your active sync user ac and import from the file you export just now.