• The Android operating system plays a significant part in Huawei's smartphone business as the second-largest smartphone maker in the world.
  • Chine telecoms company ZTE was previously blacklisted by the US government after it was discovered the company violated existing sanctions against North Korea and Iran.
  • Eventually, the US eased sanctions against ZTE in exchange for a $1 billion fine, as well as a shake-up in management and allowing a US compliance team to oversee activities. The agreement wiped $3 billion off ZTE's market value.
  • US sales of ZTE smartphones were also under threat, but negotiations finally led to a ban of ZTE devices only for US government contracts.
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Google has stopped providing updates of its Android software to China's Huawei, the world's second-largest smartphone maker, after the US government placed Huawei on a trade blacklist.

Google's ban could have a massive impact on Huawei's mobile business. Without future updates and other crucial components of Google's Android operating system , Huawei's future smartphones could become expensive paperweights to existing owners rather than useful and even great smartphones.

But Huawei wasn't the first Chinese tech company to get on the US government's "Entity List," which according to the Washington Post is known within the government as the "death penalty."

In May 2018, the Trump administration banned sales of US-made parts to the Chinese phone maker ZTE , the second-largest telecom-equipment maker in China that generated $17 billion in revenue in 2017.

The ban came as a result of an investigation into ZTE's sales to North Korea and Iran, which the US said violated existing sanctions against those countries. ZTE had relied on US companies for certain components, and the ban crippled ZTE's operations and led to a shutdown of its factories. The company said that the ban threatened its existence.

After intense negotiations over the following months, the Trump administration reached an agreement with ZTE to lift the crippling sanctions. In exchange for easing sanctions against ZTE, the company was forced to pay a $1 billion fine, as well as place $400 million in escrow should the company violate sanctions again. ZTE was also forced to make changes to its executive team, and allow a US compliance team to oversee activities.

Following the agreement, ZTE shares tanked as investors wiped $3 billion off the company's market value.

Read more : Why Huawei smartphones are so popular all over the world except in the US, where stores don't sell them .

Later, the US Senate would reject Trump's agreement with ZTE to ease sanctions and move to ban sales of ZTE smartphones in the US. Eventually, a compromise was reached that would only prevent ZTE from obtaining US government contracts.

In 2018, ZTE reported $12.7 billion in revenue $4 billion less than 2017.

ZTE's woes continue in 2019, as a federal investigation is ongoing regarding whether the company is a security risk. In April, MIT joined a growing list of schools that ended collaborations with ZTE , as well as Huawei, as a result of the investigations.

As for Huawei, founder and chief executive Ren Zhengfei told Japanese press on Saturday that the recent US sanctions would affect its growth , "but only slightly."

"We will not change our management at the request of the U.S. or accept monitoring, as ZTE has done," he said.

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