Update = After verifying ownership and completing troubleshooting, a DELL agent setup a like for like system exchange.
We opened a ticket, , on January 13. Dell has been onsite twice. The original issue was the screen freezing. After the first site visit the unit would not turn on and was making a hissing sound. After the second visit the laptop was unable to see any wireless networks and it would no longer take a charge. Out last email on March 10th has gone unanswered. We followed up on March 15th and still no answer. Is it possible to get some help with this unit? 
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