DFR0556 16X2 Green LCD one black bar only

I seem to have two issues with this DFR0556

First when power up to either 5v or 3.5v all I get is the top row is black and bottom row blank

using this code

import machine

sdaPIN=machine.Pin(6)
sclPIN=machine.Pin(7)
i2c=machine.I2C(1,sda=sdaPIN, scl=sclPIN, freq=400000)

devices = i2c.scan()
if len(devices) == 0:
print("No i2c device !")
else:
print('i2c devices found:',len(devices))
for device in devices:
print("At address: ",hex(device))

when doing a scan of the i2c I get

i2c devices found: 3
At address:  0x3e
At address:  0x60
At address:  0x70

I have tried address 0x27 also no go

I have tested two unit with just power and all with a Raspberry Pi Pico and getting the same results.

Are these defective or I am missing something.