@Vagesan May be there are some more screws under rubber stops? If not, then the back cover or service lid has some latches which prevent the lid or cover to fall out. So you have to bend the lid a little bit upwards and make use of a little plastic spatule ( an cheque-card with a sharpened edge) and slide it under the cover to release the plastic notches. In case it is the back cover, it might be hold under the hinge coverage as well. regards, daddle
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