Acer 5552 black screen

Question

How can I display two or more markers on a graph at the same time?

This is part of my code for this task

chartView.data = LineChartData(dataSets: [dataSet, dataSetForecast, dataSetUpper, dataSetLower])
let upperHigh = Highlight(x: (dataSetUpper.xMax + dataSetUpper.xMin) / 2,
                          y: dataSetUpper.yMax, dataSetIndex: 2)
upperHigh.dataIndex =  2
let lowerHigh = Highlight(x: (dataSetLower.xMax + dataSetLower.xMin) / 2,
                          y: dataSetLower.yMax, dataSetIndex: 3)
lowerHigh.dataIndex = 3
let forecastHigh = Highlight(x: (dataSetForecast.xMax + dataSetForecast.xMin) / 2,
                             y: dataSetForecast.yMax, dataSetIndex: 1)
forecastHigh.dataIndex = 1

chartView.highlightValues([upperHigh, lowerHigh, forecastHigh])
chartView.drawMarkers = true
chartView.data?.highlightEnabled = true
chartView.notifyDataSetChanged()
chartView.setVisibleXRangeMaximum(3600 * 3)
chartView.setVisibleXRangeMinimum(0)

Library https://github.com/danielgindi/Charts

Solution

Might be a bit old topic but... I had the same issues with same model

FN + ESC did not work.

My solution

1) Prepare a usb stick with latest bios

Download it from acer site

Copy the fd and flashit.exe from dos folder to root of usb stick

Rename XEWxx214.fd to BIOS.FD or zg5ia32.fd I had it with both names ;)

2) Open back cover remove battery and RAM. Under Ram there are two solder's close to each other, short circuit them with a screw driver While shorted these contacts press Power button and keep it short circuited for a like 10sec Close pc from power button. Insert RAM and battery

3) Insert usb stick to left port, plug ac power

Keep FN + ESC pressed and press power

The fan should start spinning faster now. I got NO other indication

I left it like this for a couple of minutes and then it shuts down on it's own

Then i started it and voila it was working.

Might need try last step a couple of times till u get it correct

Comments

[Dave]

Does the machine beep when you boot it up? If so, check the beep code against the BIOS manufacturer. Can you confirm you can see the BIOS? If so, it means the issue isn't the screen, but the OS appears to be corrupted/faulty/broken. Try the repair disc

[ron]

No beeps doesnt respond to disc in dvd drive. I dont think I have a screen problem rather that the bios never seems to take effect. I have put the latest bios files on the root directory of a sub stick but when following the prescribed process to install the bios at switch on time it doesnt seem to get read.

[Dave]

If you make a change to the BIOS (any change) and then reboot, does it remember your changes? Can you also confirm that all the connections (which you have access too) are plugged in well.

[ron]

Ive had the panel off that gives access to the memory sticks cmos battery etc, I'll take the whole of the back off to check more connections. So far I dont think any changes have been made to the bios because the screen has always remained blank, perhaps someone can confirm how to change the bios from the Fn Esc 'dead' start.

[Pitto]

Same problem here... Acer confirms itself as the king of laptop lowbrow.