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Hello, I get we are all frustrated over keypad repairs but there are very many reasons as to why none of us have access to the firmware and the injection process - and as much as I would like that to change it may not be possible as the process is not as easy as some of you believe it to be. Before I get to that lets take a look at the keypads. Hyosung 5000K/R - firmware starting with V3.xx.xx will not be able to accept TDES keys. Currently only one company can convert these 5000K keypads to true 6000K V8.xx.xx (ATMRepairServices). They are fully functional and can accept TDES keys and is a true repair as they use the Dallas 5250 or similar variant of chip. Hyosung 6000K - firmware V8.xx.xx - it's important to note that not all V8 firmwares are the same. For example a dark grey keypad from a 1800POS/CE/SE runs a specific version of V8 that if the keypad is used in a 1500 minibank - then it will not work (won't be allowed to enter the keys and will not respond) - although any minibank 6000K gold keypad will work in any 1800 with any V8 firmware. Only a few companies can inject the 6000K - and Hyosung. As far as I know about 3-5 people can do this with a majority of them being ex Hyosung engineers or companies who have paid off specific people to get the ability to inject. Believe me when I say the process is not as easy as you think - I would rather pay 100 bucks for a keypad repair then deal with the security features of some of these chips....the chips alone are pricey as well. Hyosung 8000R - the newest style keypads once the battery dies will need full replacement. As far as I am aware Hyosung ONLY holds the firmware to these and NOBODY else. They will refuse to repair - unless it's a specific circumstance. All of these keypads will last longer when plugged in - they do use a small charge to store the master keys when unplugged hence reducing the shelf life. This is confirmed 100 percent. Now the company who converts the 5000K to 6000K properly also upgrades the ram chips as well. This is due to in the United States DCC transactions are seperate and they need to be able to able to process two transactions at once. In Canada DCC transactions are sent together as one transaction. Chances are nobody will ever get the 8000 firmware aside from maybe one person that I can think of personally. Also there are specific rules regarding PCI compliance that have to be followed when injecting firmware not just keys, etc. Now onto Triton T5/T7/T9 firmware Triton does - keypads can be reset and wiped as well by what's called a in field reset tool. This tool costs the ATM company dearly - as it requires a fee for every keypad reset as well as being a sole distributor of Triton ATMs and TRUSTED supplier ( were talking massive ATM company's only). Your only option if you are small (500 or less ATMs) is to send to Triton direct. As for hantle/genmega They use a variant of the Dalla chip as well. B1/B2 - hantle and a few others can repair these once the battery dies with a 50 percent success rate as the chip is encased in a tar like substance. I have had the injection tool - and it's something you probably will never be able to get as it is not even in English. It loads the firmware via a JTAG connector. This tool is good for upgrading firmware and resetting the keypad but again if you have to overcome replacing this Dallas 80+ pin security chip to be PCi complaint,etc it's better off to send it to hantle/genmega/one of these repair companies. The problem lies when the battery dies it wipes the firmware - then the process to take apart the keypad alone can completely destroy the keypad. If you manage to get past that then you have to deal with replacing the chip and all of its security features. Goto the Dallas semiconductor website and read up on the Dallas 5250 ...these types of chips and firmwares are hard to understand even with extensive engineering and programming knowledge. I have spent countless hours trying to figure this out - i am beyond educated in programming and electrical designs. You are better off having a few spare keypads around the warehouse and replace as they die so you don't have a 2-3 week downtown. I am sure if someone showed me the process on a 6000k I could do it - but honest is it worth it? The cost of the chip, the time, labour, etc would be in the hundreds of dollars if you do a few keypads a year. This is only worth it if you are a repair company or have thousands of ATMs running and at that point let's face it you don't give a damn the cost of a repair since you are probably doing fairly well in this industry. I have been lucky to get some of the tools that most people don't have when it comes to ATMs but one thing I'm not really interested in touching anymore is the keypad itself. It's just not worth it.