Merge "Returns null not empty string if MEID is not available" am: 634c1080

        if (telephony == null) return null;

        try {

            return telephony.getMeidForSlot(slotIndex, getOpPackageName());

            String meid = telephony.getMeidForSlot(slotIndex, getOpPackageName());

            if (TextUtils.isEmpty(meid)) {

                Log.d(TAG, "getMeid: return null because MEID is not available");

                return null;

            }

            return meid;

        } catch (RemoteException ex) {

            return null;

        } catch (NullPointerException ex) {