SDHC memory card problems

i recently got a sdhc memory card for my ORIGINAL r4.but its stuck on loading can someone help me???PS:i have wood ds 1.4.2

SDHCSdhc cards do not work on the orig r4. Only regular micro sd cards upto 2gb will work.

is there a way to get 4 gb or higher working in any way?

no, the hardware is different. 4gb non-sdhc cards did exist at one point but they were replaced by the sdhc versions which are cheaper to manufacture.